I know both of these exercise wheels have been discussed in several threads (and I've read all of them!), but there haven't been any recent postings. I don't know that I will be lucky enough to find anyone who is familiar with both wheels, but I would like to find out if anyone has some comments on either or both wheels to help me compare them and determine which would be best for my kitty and my pocket book! I have a neutered male, who is fairly small, about 10 to 11 pounds, and 5 years old. I guess I better confess, he is not a Savannah, but is a Cornish Rex. (I really appreciate this site though, because our Stinky seems to have a lot of the same personality and energy traits as Savannahs and your comments have been very helpful.) Stinky spends a lot of time cat napping, but has daily short periods of running around the house chasing whatever he can find--or nothing at all. I like the Go Cat Wheel because the base and the roller system seems to be better made and more sturdy. I like the One Fast Cat wheel because of the price and color. I don't know if Stinky will like a wheel or if he will use it very often (but I suspect he will), so those are factors I also need to consider. I would like to hear comments anyone would like to make on their experience with the quality and durability of these wheels and their opinion on the suitability of the wheel for my kitty's needs. Thanks!