I strung up a seldom used guitar with these, and I found my expectations to be fulfilled. The sound is surprisingly great, with a clarity reminiscent of d'addario, and the feel is good. They felt a little bit too 'weak' for me though, if that makes sense.
I expect them to last quite long, as I said I don't play this strat very much, but I still didn't have to change them after a long time.
Recommended if you're on a very tight budget. If not, you can invest in better strings.