Their website looks flashy. And they brag about how many machines they operate. But that doesn't necessarily mean much.
What's interesting is that if they are such a successful operation, they should be able to recognize a good profit making opportunity when they see one.
Yet they let this contract slip through their fingers. So if it's a profitable contract, but they mishandled it, then there may be other opportunities for you after this one.
http://www.coinmachservicecorp.com/
Keep us posted on your progress if you decide to go ahead, or if you get any more data.
You might want to see if you can chat up a current or ex employee of coinmach to see if they can give you any insight on the profitability of various apartment buildings.