I like the T-LCM pedals because they do exactly what you can expect for this price. Of course there are better sets (Fanatec, Heusinkveld, etc.), but they are often a lot more expensive and especially offer added value for the really fanatical sim racer. For those who do play serious sims and want to keep costs within limits, this is a very nice pedal set with an excellent price-quality ratio.
It takes some getting used to and you'll have to recalibrate your pedals in racing sims, but that's easy. When you have ridden 10 laps with these pedals you are used to it and you can start working on your lap times. With the supplied spring sets you can make the brake pedal (the most important feature of this set) stiffer or more flexible. Incidentally, the other two pedals are also perfectly fine.
Make sure that the pedal set is clamped when you start racing. You can exert up to 100 kg of pressure on the brake pedal, so the set must be stable. In addition, the pedal set is compatible with handlebars from other brands, so don't let that get in the way. If you're a sim racer and you want to upgrade your setup, in my opinion this is the best investment you can make.