Let me start by saying this: the TCL QM85 is a BEAST. I've been using the 75-inch model for about a month now, and it's completely transformed my living room into a mini home theater.
The first thing that hits you is the brightness. We're talking retina-searing, sunglasses-inducing brightness when you want it. But here's the kicker - it's not just bright for the sake of being bright. Sunsets glow, headlights pierce through night scenes, and colors pop with an almost 3D-like quality. I watched Dune on this thing and actually squinted during the desert scenes - that's how immersive it is.
The QD-Mini LED tech delivers blacks so deep they make my old LCD TV look gray by comparison. Blooming? Yeah, if you go looking for it with a magnifying glass in pitch black rooms with moving bright objects. But in normal viewing? Forget about it.
Now let's talk sound - that built-in 5.1.2 system punches way above its weight. Dialogue comes through crystal clear on 'voice' mode, and action scenes have proper oomph. Is it as good as a $1000 soundbar? No. But for most people in normal-sized rooms? More than enough.
The Google TV interface is snappy as hell (though I did connect via Ethernet - always recommend that for streaming). Apps load quick, navigation feels fluid, and voice search actually works properly for once.
Now for the not-so-great: Off-angle viewing isn't this TV's strong suit. If you're way off to the side, colors do wash out some (though the newer models apparently improved this). Also had one weird quirk where certain picture settings mysteriously disappear depending on which mode you're in - like why can't I use auto-brightness in HDR mode?
Bottom line? For the price (especially when on sale), this TV delivers premium performance that rivals sets costing twice as much. Just make sure you're sitting mostly centered, and maybe spring for extended warranty if you're paranoid about quality control issues some reviewers reported.