We're happy with this brand, it's just that the Android TV side does not keep my Netflix password and reverts to "shop" mode from time to time... we have an Apple TV so the issues don't bother us as much
Had the same problem with the tv going into shop mode. You can disable it by:
Settings->Picture->Advanced->cursor on Contrast->type push 6 4 2 5 on remote. A special menu appears -> turn auto store mode off.
I like my TCL, especially for what I paid ($7xx for 55") but the Freeview EPG doesn't work the best. Sometimes I get big bands of blank programming and other times the same program shows up on all channels.
I previously had a problem with the channel buttons on the remote not working (kept going into source mode) but fixed that by retuning the freeview channels. I'll give that another go and see if that fixes the EPG issue.