Hi.. I operate a 6 Bay, 8 Vacuum Self Serv.. in January of 2015, I did a total update to the site.. New Vacs, Bay Controllers, Bill Breaker etc.. I ditched all coins and tokens etc.. I went Bills or Credit/Debit with CryptoPay..all Bays and Vacs.. after 1 yr of operation we are averaging 54.3%...