I’ve had mine for a few days, typing test here.
I haven’t used them enough for an in-depth review yet, but for 25-30 cents they’re very solid. Very stable N/S and smooth as well; just a light bit of hushed texture in the press - a good bit less than average. Definitely a budget contender worth considering, at minimum.
I don’t have a “standard” one to compare it against so I can’t comment one way or the other about KeebMonkey’s input here, but either way it’s a totally decent 3-pin linear.