Only someone without personal experience with TCL can recommend it. I own 55C715 QLED, its a complete disaster. While the screen might be OK, the UI is terrible, slow, laggy. It requires frequent restarts. It lacks some basic settings, like audio output/mute built in speakers. I thought that I can solve that by adding xiaomi tv box, but it was a failure, since TCL has problems with CEC, so I had to have 3 remote controls on table, 1st to start up and switch off TV, second for TV box and 3rd for volume on DAC. Unacceptable.
I will sell that TCL TV and buy Samsung UE55TU8000. Because I had opportunity to try that and it was much better than TCL