No personal experience w/ them yet, but been keepin ga close eye.
When they made the first run, tehre was an announcement on one of teh boards about it, tehy were selling them cheaper to get interest going.
IMO, it's a good design - kind of a mix between the old Kayline/STC style and the SunTop (?) models that pop up every now and again. Personally I like the fold-down-convertible-style feature myself. Company has a decent rep for quality too. I've been waiting for a lump of cash to spend (yeah, right!) and will probably get one.
There's one model out there that lwts you optionally use the rear glass window, maybe thsi was it? in the eBay pics they don't show that, but it looks liek it'd fit... personally I'd rather have rear glass...