Yes, it works with the factory fitted reverse camera, that saved on rewiring a new cam.
All the steering wheel controls work, ie volume, skip, change mode, and the phone controls. The factory fitted mic and GPS receiver are now obsolete, I've fitted the ones that came with the head unit. They work fine. Every thing else works fine.
The one I've fitted is a 7" screen model, I haven't seen any at 8", also I wanted to keep the original factory look. There are some which are up to 9 or 10" that are integrated into the dash, but when I looked into it they admitted the quality of dash is inferior to the original. If you go for that make sure you get the RHD model for the UK!
All the Dasaita ones I looked at do not include the canbus which you will need to get factory reverse camera and steering wheel controls to work, despite some contradictions in the items' descriptions. Without that canbus the steering wheel controls will have to be manually configured possibly with some limitations.
The ebay item number for head unit is 353396395152
and the canbus is
I can send you the ebay links for the head unit and canbus if it helps.
2015 gx4h, white, purchased May 2018, West Yorkshire.