Funny you should mention it, I got Carly today after seeing how easy it was to use a Mike's (Ducklakeviews) last week. Much quicker/easier to use the INPA, ISTA D or P.
I programmed my pre facelift 05 to do "roof up on remote" this morning among other things. I previous heard/been told conflict reports of this being doable on the pre cars. I didn't even need to buy their adapter my existing BM Cables silver lead works a treat with it. So if you have something like that already there's £35 potentially saved.
The only drawback I had was that the Gaptech + is 3 clicks and you can walk off knowing it will do the roof and windows without any further intervention. With Carly I first have to close the roof then release the key for a second before repressing and holding to do the windows. Not the end of the world I know!