I have a Nexus 7. Technically it's great, but in reality the screen creaks when you use it, it's pixelly (despite having 1.4 device pixel ratio), the headphone

I have a Nexus 7. Technically it's great, but in reality the screen creaks when you use it, it's pixelly (despite having 1.4 device pixel ratio), the headphone jack only works at a certain angle and most apps are awful (some exceptions, but most big brands have worse Android apps than iOS). It came with Google Play credit, but I can't find anything worth buying. I'm sure there are things, but I can't find them.