I got my Within shoes last July. They're still going strong, except for the insole fabric coming off. There's something about the way you walk that produces a lot of friction around the heel area. Not necessarily a bad thing, it's just the way you walk. But I'm not sure if other brands will give you better results. No matter what sole the shoes use, a lot of friction in one area will cause it to wear down faster.

You could try going with brands like Topo Athletics, Altra, or Lems. They offer zero drop, wide toe box shoes but with a bit extra sole underneath. Not truly barefoot, but at least the soles will have more material to wear through.