With the top down at about 60 the back seatbelts in mine start flapping around and banging on the pillar. I always say I'm going to fasten them so it doesn't happen then I forget.
Yes. It's awesome that you can unlatch the two clips at the windshield and fold the top back, takes 10 seconds. Have been thru pretty serious rain and a carwash with no leaks. Soft top is great.