I'm a flatwound string fan and used many different ones (Chromes, TIs, LaBellas, Roto jazz flats, Pyramids...).
I just didn't like the sound of these. Nothing objectively wrong with it though. It's balanced between strings, nice fundamentals etc... It was the upper end, the steel zing that I just found annoying. Maybe it would have broken in over time, but it was too annoying to give them time.
The quality seems great though. Tension is even, finish impeccable. Price is good too... Try them out, maybe they work for you.