My yardstick is the Blade, so obviously the bar isn't set especially high but the camera for me is reasonably good. The focus is good, and the colour reproduction and brightness are reasonable. I briefly owned a Nexus 4, and it's comparable with that.
Speed wise it's fantastic. No real lags, graphics is adequate, application load times are fine. Keyboard isn't laggy at all (coming from a Blade on 4.2 this is a huge luxury!)
The phone is great - it's definitely great value for money. My only gripes are the screen size (I can't reach the corners, but 4.5" is hardly unusual these days so I'm sure I'll get used to it) and the RAM is a bit short - I'm hoping for the zRAM and/or swap solutions to these.
Very happy with it, it's great value for money. It's a £130 phone - match your expectations to that - but it's certinly good for the price.
Thanks for the info, my G300 has been fautless in use, I have used various CM / Jelly Bean ROM's on it and love it, I am so into using Google Now, but on the G300 it can be a bit fragile.
My expectations on this phone are low, I am not a gamer, I will use it as an Internet browser, Online Radio Player, Cardio workout logger, BBC I Player/Video watching but mainly as a Sat Nav in the car, nothing that will really tax it to hard, if my G300 can do all this as a single core, the G510 should walk it.
Edited by Andymac1969, 20 April 2013 - 08:57 PM.