I have 8 of the TAPCO Galil/Golani .223 mags that I got for my Saiga with bullet guide. A minor mod is required, since the Galil receiver is slightly different than other AK variants, but it is quick and easy to do. I have some steel Israeli surplus mags, but they are not as consistent and most need lots of tweeks.
My experience has been 100% positive, no FTF or other problems of any kind.
I have a couple of their 20 round SKS mags that work very well. I haven't yet fired using their 7.62x39 AK mags, but I purchased a few recently to do so, as they were on sale for $8 each.