What remains of the plaintiff's evidence on assessment of damages
67 First, in my judgment of 7 May 2001, I accepted, as expert opinion evidence, a passage from the third HAP report, which I quoted in paragraph 117 of the judgment. That passage asserted that failure to achieve the expected guest comfort levels and satisfaction because of air-conditioning problems translated into lost business opportunities of various kinds, because the negative sentiment created in such situations is difficult to reverse. The passage expressed the opinion of the authors of the report that air-conditioning is "one of the most important factors" in ensuring that guest comfort levels are satisfied. I found (at paragraph 123) that the passage reflected ordinary common sense and experience.
68 In my opinion, the oral evidence of Vains should not lead me to reject the evidence in the passage quoted at paragraph 117 of my earlier judgment. It was, as I have said, evidence that reflected ordinary common sense and experience. As the authors said, "the design and construction of the hotel is to prevent the opening of the windows by occupants of the rooms, and if they are, the outside noise generated from passing traffic would be unbearable for hotel guests (this would be the case with the subject hotel, as it is located adjacent to the Pacific Highway)". It stands to reason that stuffy, insufficiently cooled bedrooms would be the subject of more frequent complaints than problems with slow and inefficient elevators (unlikely to affect all guests on a given day) and building presentation.
69 The opinion of a person with expertise and experience in the hotel industry, about the way hotel guests react to air-conditioning problems and the likely impact of their reactions on revenue, has some weight even if the expert appears to be muddle-headed and gives contradictory evidence on other matters. The expertise and experience of Mr Vains (said in the first HAP report to have in excess of eight years operational and management experience with major international hotel chains within Australia), as opposed to his competence, was not challenged by the defendant.
70 Secondly, in his oral evidence Mr Vains said, in the passage quoted above, that in comparison with problems about elevators and presentation of the building, problems about air-conditioning "would have the greatest impact on the operation of the hotel". In cross-examination he said that presentation of the facade of the building was "not a significant component" in bringing about financial loss (Transcript paid 65.50), and that "the air-conditioning was the most significant component" (Transcript p 67.45), although the problem about elevators "was an important component" in bringing about financial loss (Transcript p 67.35). It seems to me that this evidence is in the same category as the passage quoted from the third HAP report. In my opinion, it accords with ordinary common sense and experience, and is evidence based upon the expert experience and knowledge of Mr Vains with respect to the hotel industry. It was not contradicted by his other evidence, however much his other evidence diminished the evidentiary value of the new HAP report.
71 Thirdly, as noted above, both the third HAP report and the new HAP report asserted that it would be impossible to quantify with mathematical precision the impact of, inter alia, the air-conditioning problems on the hotel, or how those problems would translate into lost accommodation demand and lost revenue generating opportunities Mr Vains repeated this point on several occasions during cross-examination. It is consistent with this point, as the new HAP report in fact asserts, that experienced hotel consultants can make general statements and predictions about likely impact, such as the statements quoted above, to the effect that air-conditioning problems would have the most significant impact on guest satisfaction and hence revenue, when compared with elevator problems and problems about presentation of the building.
72 I accept the assertions in the third and the new HAP report on these matters. In my opinion the cross-examination of Mr Vains reinforced the proposition that it is not possible to quantify the respective influences of the three elements with mathematical precision, but it did not countermand the proposition that an expert in the hotel industry is qualified to express a general opinion on that subject.
73 Fourthly, other evidence given at the initial hearing provides some support for the proposition that the air-conditioning problems were, of the three elements, the most significant component in bringing about financial loss. There is a summary of such evidence in paragraph 55 of my judgment of 7 May 2001, and I accepted the evidence so summarised in paragraph 56. That evidence demonstrates that there were frequent complaints by guests about the air-conditioning of the hotel. It was admitted to establish the fact that the complaints were made, rather than the truth of the matters complained of, but evidence showing that there were in fact complaints, on a reasonably widespread scale, is significant having regard to my findings based upon other evidence, to the effect that there were persistent air-conditioning problems caused by the intervention of the defendant. Moreover, the individuals mentioned in paragraph 55, other than Ms Steiner but including Mr Ramian, gave evidence based upon personal experience to the effect that the air-conditioning comfort levels were sometimes unsatisfactory. One of them, Mr Robert Hancock, who was licensee of the motel between January 1994 and August 1998, said in his affidavit evidence that in his experience in hotel management, air-conditioning comfort levels are a deciding factor in whether guests will stay on and return.
74 Finally, while Mr Vains' evidence in cross-examination has destroyed the credibility of the quantifications of the new HAP report, my opinion is that the approach and methodology of the first and second reports have survived. I decided to accept the approach and methodology of those reports in my judgment of 7 May 2001, and nothing has happened during the hearing of assessment of damages that has led me to resile from that decision. I shall elaborate on the significance of this point under the next heading.