Here are ppgear's ratings and reviews. These ratings are useful because ppgear has his/her own standard and will rate and review the ping pong equipment accordingly, giving you accurate and useful ratings and reviews to aid you in your next online purchase.
I've been using this shoe for almost a year now and they're still good. Has good grip, is comfortable and hasn't shown any signs of wear. I'm not sure how long shoes are supposed to last, but so far these are going on fine.