I have owned most of the top pioneer decks, and this one is by far the absolute best. The built in bluetooth works amazing, i had all my windows and my sunroof open driving at 140 kph and the person i was talking to said it was still super clear. I HIGHLY RECOMMEND THIS DECK !!!
Just got it. Very good sound for build-in amplifier. Works perfectly with my Qtek S200. Both as phone and as sound source. Display is a little bit too bright in dump mode. Wish it had manual light adjustment. Interface needs a bit of learning. Only one thing I do not like -- blue lights. I would prefer white or amber.
After using the Pioneer DEH-P8600MP for a couple years it just stopped working altogether, so I wanted to get something with bluetooth and a USB port. The 7100BT is a great deck but doesn't have nearly as many audio features as the 8600MP. If your a true audiophile and want more audio options go with something else. If you can put up with a 7 band equalizer and only one HPF then go with the 7100BT Overall, great head unit, just lacks some of the features the 8600mp had.
