I'm loving the Lancer L5 AWM mags. They've proven to be as reliable and more durable as pmags. I like the L5 AWM mags because they ar made of polymer with STEEL FEED LIPS with a self leveling follower. I've seen too many PMAG's fail due to the feed lips.
Long story short, when I have to trust my life with my gear, I take my L5 AWM mags.
That's my experience too. The old L5s were better than Pmags, and the AWMs are even better.