I doubted it too at first.

My first try on no brand tire was the rovelo sport A1. Supposingly better than toyo T1R. Nope, its badddd.
This is my second try on no brand tire and I was really impressed with the grip for the price point.

Tires I had tried so far.

Toyota corolla AE101 with 4AGE blacktop engine, 6 speed manual 165 hp - Dunlop D05, Michelin PS3, Toyo T1R.
Nissan Sentra B13 with SR20VE 20V, 6 speed manual 225 hp - Rovelo sport A1, Sumaxx Max drifting (current).

To be fair, most probably the michelin PS3 has better wet grip than the sumaxx.

Almost got the TR1 hahaha.
Yeah T1R is just acceptable. Still ok la if you support it with adjustable suspension. Bunyi a lot but it won't actually buang if control properly.