Rating based on cost
Now, I don't expect a $60 pair of SDC's to compare with a vintage set of Neumann KM84's, so I'm not going to try. I purchased these cheap little guys for an extra set for those little moments when I want one more stereo pair for a session, some percussion perhaps, or a background guitar when all my 'premium' mics are already earmarked for other purposes.
But of course, before I use them for such a purpose, I put them up and tried them out. Acoustic guitar, mandolin, melodica. Both mics where set up through Summit Audio ECS-410 Everest channel strips. I was worried they would be a bit shrill sounding, but they worked just fine. Not a lot of character, but that's OK, those channel strips allow me to dial in whatever character I want, so transparent mics work great. They had decent detail on the top end with the expected roll off down low. Build quality for the case, clips, stereo bar, etc. is pretty low but that's expected and not a huge deal. The mics themselves feel pretty solid, I found them to match well as far as stereo matching (I did not doing deep testing on that).
My rating it based ON THE PRICE. Really, really cheap mics and they are certainly passable. It's pretty amazing what is available nowadays in the inexpensive range! These are certainly useable microphones with my setup (really good preamps and AD converters). Not my immediate 'go-to' set, but really pretty amazing for the price. If this where my only pair of stereo SDC's I would certainly save and get something a little more high-end (check the Torch by Lauten Audio), but as a spare pair for room mics and such, they're really quite nice.