Ok first I have to say that I'm new to the Pioneer in dash nav and have only used (not owned) Garmin handhelds before. I had a Pioneer DEH-P4800MP deck installed but obviously this is in another league. I was also considering the Eclipse AVIC-726E but when you see the two side by side the screen and clean look of the 110 really do help sell it. Nav was the primary use I was looking at.
Likes
The screen
Boot up time is very good (I read that this was a problem with earlier decks)
Customization
route recalculation is very fast (wish it said recalculating though)
Dislikes
While viewing the map I always have to press the SD pic to see what song is playing and the settings
Radio reception sucks (P4800 was great)
Unit will randomly reboot when bluetooth is connected (BB curve 8320)
POI lacking only shows BoA ATM not Wells Fargo or other banks, No In and Out Burger (this just makes we wonder what other POI's are missing)
I like on other units that when you are spelling it will gray out certain letters and provide a listing once you get close.
More annoying than a dislike-Driving on a freeway and coming up on random exits it will tell you to stay on the hwy. Not sure why it tells you this for random exits. I would understand if they were secondary highways but....
Overall I'm impressed with the unit and it works well. I like the SD slot but was alittle disappointed that the 3.5mm plug coming out the USB will not take other MP3 players and only works with the iPod. I had to connect a cable to another input to get a creative zen to work. It would also have been nice to have the option to hook a solid state HD to the USB but since it doesn't like my WD passport I'm guessing it won't like the SSHD either. It also seems that there are way more nav features that I'm just not using. For those that have had Pioneer nav units you probably know these little tricks and tidbits. (pass 'em along please)