I've had the first gen AVIC for 4yrs now and love it... now that I updated it. It hides in the dash when not in use and has a verity of great features that make adjusting the audio levels a snap... and it sounds much better than the stock head unit even if you're tone def like myself!

I'm not saying it's perfect but it does everything I need it do and then some and now it does even more with the update. And they just came out with I think the 4 gen (AVIC-N4) a little while ago.

Do a search for AVIC and you'll find a lot of good info.