These are good strings, but not my cup of tea. If you really want flats that sound mostly like rounds, these are for you. The tension is fairly low. They don't have a luxurious feel right out of the package like GHS Precision Flats and Dunlop Flats do. The feel is more like a lower-tension version of Chromes. I put them on an Ibanez RB820. I play with both fingers and a pick, and I play mostly various genres of rock.
My gripe about them is exactly what many might like about them. They sound too much like roundwound strings. They definitely don't have the string noise of rounds, but they feel fairly bright, and they have a lot more sustain than other flats I've tried. But they seem a little thin in the mids. If you want a bright and zingy set of flats (and I imagine you might) these are for you. I like my flats to feel a little more percussive and less sustainy. I play a lot of flat-picked punk rock on my Dunlop flats, and I suppose if I were looking for a more post-90s picked punk rock sound, these would be perfect, but they don't have the flatwound dankness that I crave.
Ernie Ball Super Slinky Flatwound Bass Set, .045 - .100
SuperBright Cobalt Ribbon - Superior Sheen and Feel Cobalt Under wraps - Added Clarity and Output Optimal Core to Wrap Ratio - Comfortable Tension