Before I start, I am using @RogerH69 review as a guide so it may read similar to it. I want to point out that I have had problems with the internal amp on my first unit and unfortunately the same on my second unit. The review below discounts those issues but I will address them in full at the bottom. On a scale of 1-10 I give the unit a 7. It almost had all the features I needed: single DIN motorised, responsive touch screen, top notch sound quality and RGB input (but no HDMI unfortunately). Interface is a solid 10/10. No lag whatsoever and very visually pleasing graphics. The unit itself looks good (to me at least) though it may stick out in older cars due to its "futuristic" styling even though it primarily going to be installed in older cars. Audio quality is a 7/10. When compared to internal amps from previous stereos, I would place the Pioneer between the awful Sony's and just under the Alpine's. However on BOTH units the internal amp cut out every few days for a while and there was no noticeable way to reset the amp. Just to confirm, both units were from different batches and manufacturing months (May 2015 and June 2015). AppRadio mode does work on my S6 but I have instead hooked up a Miracast dongle to the systems AV input and use that to mirror my phone's screen. This is particularly useful as you can mirror any GPS app that you use on your Android. I personally find it a lot better than built in NAV's as phone GPS systems are constantly updated for free with traffic and speed cameras. However I should point out that an external NAV unit can be purchased to enable navigation on the system via Pioneer's dedicated system (though I have never used it and do not intend on doing so considering that the NAV unit costs around £200+). Now normally I would have returned the head unit but there is nothing in the market that even comes close to the Pioneer X7700BT unit and I've always used an external Alpine amp so it doesn't matter to me too much though it may hurt me when I come to sell the unit. So, in conclusion I highly recommend the unit but put the internal amp through its paces to make sure it doesn't cut out. As for pricing, Amazon UK were selling it for £350ish, be savvy and use the Euro's weakness to your advantage and order from Amazon.de, fr, es or it. Funnily enough the stock will still come from the UK warehouse but you will pay around £280 in Euros (so even allowing for bank charges, you save a decent amount). Photos will be uploaded tomorrow, if you have any questions feel free to ask below.