I have had my Badger I top for almost a year now. The gutter kit is fantastic!! We get lots of rain here in Vancouver, and I haven't had one drip in the front. (Thanks Chris!) The side and back windows are really easy it take out as well as put in, even when the weather is a little cooler, the top has just neough give to put the windows in without a struggle.
The wind buffeting isn't too bad, but the back window is a little on the loose side though, and scuffs against the 3rd brake light on the highway. With the windows out, I haven't had any issues with the back corner popping off the rails.
Overall, it's a great top!