I ended up getting a Toto Drake and a Viper. I wanted to get the Drake for both bathrooms, but one of the rooms had a 10" rough in, so the Drake was out for a number of reasons. So far, I've been impressed with the flush of the Drake but not that impressed with the Viper. Its better than the standard cheapo toilets that you see in a lot of houses, but you definitely need to still keep a plunger handy.