There are no reviews that I know of. It’s an entry level set, so temper your expectations and keep that in mind. I find that people often have unrealistic expectations, hence the reddit user saying the screen is “awful”. It’s not awful—I’ve seen that model in-store.
Are you going to get cutting edge PQ? Of course not, but it’s decent and watchable. The Roku platform is really easy to use, and is well-supported. IMHO, it’s pretty good for what it is, and you’re not gonna get a better 75” tv for $999 Canadian. Don’t overthink it.
My humble main system:
Vizio M75-E1; Oppo 203 universal UHD player; Denon 4300H AVR, Dual PSA S1801's; Monitor Audio Silver RX-6 mains, RX center, and RX surrounds; one pair NHT mini Atmos speakers; Home-built HTPC (Xeon E1230, 16gb RAM, Crucial M500 480gb SSD, GeForce 980Ti, Corsair CX600, CoolerMaster mini-ITX case); Roku Premiere+; Amazon 4K Fire TV