The hardware's decent enough. Can't complain. Everything's pretty light / smooth with stock android.
The launcher is, lets say you want to change brightness, you have to scroll down twice. Hrrrm..
Tp4 got the working-poor 8a edition, so the camera is meh. But Tp4 takes very few photos.
Screen quality, You know good and bad. It's very accurate, you can tell they're clamping the gamut hard. The draw back is, everything looks a bit dull like on ifones, they do the same thing, target accuracy. Samsung has that rainbow barf color mode, which Tp4 embarrassed to say enjoys on mobile.
Accuracy is not better in the majority of cases outside of photo apps.