Very nice Head Unit, fits well in my Vauxhall Astra J, all canbus controls work properly. Easy to install. Picture quality is HD & looks amazing compared to other units. The reversing camera is very clear. There are some minor bugs that need fixing which will hopefully be rectified on newer firmware. The FM radio signal is excellent, even better than the factory unit. I also like that you can upload station names & logos to Teyes website. The voice commands work well so you don't even need to touch the screen when driving. The unit is very fast at booting up and whilst in sleep mode it comes on literally as you turn the key. I bought the 4gb 64gb version and the performance is great, I haven't noticed any lag or delay running any apps so far. Overall I'm very happy with my purchase. I would highly recommend.