Anyway, I chose to try HOT.WIRE instead of Priceline and I got the Mystic Hotel by Charles Palmer for U$ 165,00 a night, from 09/19 to 09/22. It's a 3,5* hotel.
I am pleased with it specially because this rate includes breakfast. The regular rate is U$ 222,00. Betterbidding may need, however, to update its list since the Mystic Hotel is listed as a 3 star there.
These were the amenities informed before purchase:
3,5 * - 75% Recommend - Free Breakfast, Free Internet, Boutique hotel, Smoke Free Rooms, Restaurant, Business Center.
I've used the Betterbidding HOTWIRE link.