this coming from 45+ people "speed dating." Quite a study.
I just finished a book: BLINK by Malcolm McDowell ... this article reminds me of his discussion of the Pepsi challenge in the 80's. The Study found that- in grocery stores- Pepsi won hands down- the one sip taste test. However- a secondary study was conducted- sending cases of both Pepsi and Coca Cola home with families. Coca Cola won hands down- appearantly many sips of Pepsi proved to be unappealing and too sweet.
I would go as far as to say the same applies in dating/ relationships- the exterior first sip (or look) may be appealing initially, but the take home long term seems to be the most accurate indicator of preference.