Yeah, I just put a knife in between and gently bent the pins straight again, no biggiehope you get the userport ext-header pins straight again nicely, this seemed to be a packaging issue with the included ac-adaptor.
A couple of videos have already gone out on facebook showing comparisons between the U64 and the C64.
In the current firmware state the U64 is (for me) not mature enough yet to completely replace my C64 as there's still some anomalies in sprite and FLI timings. But it's already great for listening to SID tunes or to play a game. Compatibility is at 85 to 90% I guess. Most stuff works like it should, some stuff doesn't. I'm sure in due time it will be purrrfect!
I have now set up my main C64 with 2x 8580 SIDS (SIDFX) and the U64 with 2x 6581. With Acidplayer64 I can select PRG's and SIDs on my PC which will be played on the appropriate machine automagically. The sound is crystal clear (no VIC noise) and so is the video. The scanlines on the HDMI output (optional) look very good too but the HDMI output does miss the blur that analog video induces hence some VIC tricks to create more colors by interlacing or just putting colored dots next to each other don't look as good on an LCD panel. But the Y/C output is awesome in it's sharpness and looks way better, though a bit too vibrant compared to the dull-ish C64 colors.
I'd be happy to post pics and stuff if people want to see more.
All in all, I'm very happy with my U64!