Definitely do tap and swipe. Only problem with using cryptopay is a pre auth charge. Expect to get phone calls and bad reviews depending on your area if someone selects a $6 wash but is pre-auth for $10.
There is no new controller. The LED display in the kit is what talks to your swiper/tap.
Im pretty sure
token notes are only not usable if you switch to a new validator from the XE. The cryptopay kit will work but it won't recognize the
token notes on the website.
Arnt you running a few dencar paystations that your happy with Zal? Why not just switch that one over?