Venddesign NC3A, does anyone use these?

[jmac]

I have been dealing on a few bulk vending routes, over the last few weeks. The best deal I have found includes, 22 located vendesign mint patty machines, plus 10 spares, and 27 new,unlocated Vendesign NC3A machines. I can purchase all this for $1500. The patty machines look pretty well built. The NC3A's seem okay, but not my first choice. Anyone have any opinions or reviews on these mint patty and bulk machines? Its a great deal, but I don't want a bunch of issues in the future. My biggest fear, is the life span of these machines. Any input would be great.