When buying eBay wheels, quality is something that is very concerning. You can get some good wheels on eBay, but the majority will be... less than average. Avoid potholes, and you may be refinishing them, but they should hold.
If you want something worth having, get some real reps, look into something like VMR, or Hartmann (the best of reps). You're gonna pay more but you're gonna get something that doesn't suck. Maybe even looking into used OEM wheels (or new if you like spending money)