A:
I think that the Samsung Tab A is an excellent choice. I would recommend avoiding entry level tablets, as their life span isn't but a couple of years. Battery life becomes poor, and as upgrades come out, you will find that upgrades will choke the processor, and if you don't upgrade, some apps won't run well.
As to the remote use, I turn my phone into a hot spot (free with Verizon), and can use it easily. I have found that mapping programs don't work too well as a GPS in this mode because of lag time.
Hope this helps.