I got mine installed by a local body shop and have been quite satisfied, especially the weight removal was noticeable, even in street use.
Only problem I got is that
a) got few scratches into lexan when removing stickers from historic event (now I know not to glue anything on it anymore)
[img]style_emoticons/<#EMO_DIR#>/cool.gif[/img] had a leak problem, because OEM rubber gasket for trunk left a gap between hatch door and seal. Replaced OEM seal with aftermarket seal, and now the problem is solved.
Lexan hatch is abit noisier + it's not fun to drive with open windows + sunroof above 60mph speeds, because hatch starts to resonate, but I think this is a minor problem.
our car is too heavy from the factory anyways, so lexan hatch is a good trick to lighten her up abit. [img]style_emoticons/<#EMO_DIR#>/smile.gif[/img]