I just got one.. and it seemed pretty good..
I was a bit annoyed that it opens more than 90 degrees on initial opening. It will hit the upper part of almost any dash and just grind away for a second before giving up. That seems like a good way to wearout the mechanism but I don't know how to stop it from opening that far..
Also the deck is a bit of a theft issue cause the clock and the eject button stay lit up with the battery memory wire still attached. This may also be hard on cars with nearly toast batteries?
But my huge issue is the VGA support! It was working at 800x600 but when I switched to 640x480 (windows xp hates this) and back to 800x600 I get a mess on the screen now that looks like a bad refresh rate. I've tried eveything I can with my laptop to get the picture back but no ammount of fiddling with refresh or resolution will work. Hooking the laptop to another screen proves it's not the laptop that's the issue. My next step is to try and reset the unit, but I have to pull it out to do that and yes, it's a bear due to the length.
AtleastI didn't have touch driver issues, it worked fine with the TTX/Lilliput 'TouchKit' drivers I had installed for my 8" ..
The 8" Lilliput was nice, had a proper aspect ratio, and was viewable from more angles.. It will take awhile to get used to the lower quality of the 7" screen but I do love the space it gives me.
OH .. Do not take screw length lightly!! Use very very short screws or none at all!! I put a small nick in my screen installing it with what I thought was a very shallow screw!