There's a lot of praise overall as well as the moans on small issues - I don't think you'll find anyone who says their GTI/GTD is crap.
Never buy French, not new anyway - the depreciation will put you in a bad mood when you trade it in.
Asides from niggles and long waits, everything else makes you know you made the right decision when you finally get one. Lots of standard equipment you'd normally expect to spend thousands speccing, clever design, great interior quality and appearance, good performance with class leading handling which closes the gap between it and a rival with a little more PS but seeing it going to waste on poor handling, huge amount of customisation on the settings, excellent safety systems which help keep the insurance costs down.