After living with this deck for the past week or so, a few impressions.
-Sound stage is better than the Bose and because you can tailor the EQ for each source and probably as Pioneer is known for good sounding decks, the sound is noticeably better.
-This is not a deck that you can operate easily without reading at least some of the User Manual!
As dandragon said above, it's even difficult to figure out how to set the clock! Lots of fun just stumbling around and experimenting however.
-Despite the popularity of Blue lighting, I find it harder to read.
Wearing polarized glasses makes it even more difficult. And even my 13 yo daughter finds the display more 'glaring' and hard for her to read. I wish they had an option to colour change the display to match the rest of the dash or to user preferences. I also find the 'dimmer' setting still too bright at night. Option to black-out display is good however and I'd probably do this on night-time highway trips.
-Radio presets take a few extra presses and **** twists to access. Looks cleaner though without the dedicated preset buttons of standard decks. I wish the deck would have the option of displaying the Call Letters or name of the station, even if you have to manually program them in. This is one thing I liked about the OEM Bose with the PTY display
-MP3 integration and file/song navigation are very well done. I love the ability to load my MP3s onto a USB thumb drive. I don't have an I-pod, but I've heard on other reviews that the I-pod integration is very good.
-The 3 line display is great. Continuous scrolling option.
-I like the direct (aux) input that I can now plug directly into my Garmin NUVI for Nav and MP3 playback.
-The finish of this thing (glossy black) will likely show dust and fingerprints readily, so I'll probably have to dust/clean more.
-The PAC-SWIPS steering wheel interface reacts a little bit slower doing volume than stock, however I guess this is to be expected. Works fine however, and I programmed the Mode/Power buttons to do Pre-set Up/Down.
-The supplied remote control is cool, but something I could do without. Is there actually a practical use for these things other than to let the rear passengers control the music?
-Still not sure how well the BT works as I don't yet have a BT phone. The ability to connect HD Radio is a plus to those that would like it.
All in all, I highly recommend this deck if you want a Double Din setup without a DVD or Nav screen.