Who has this "successfully" working? Buggy? Ready for commercial deployment :)?

I would like to get an idea of how alpha this product is before i go through all the trouble of trying to make it work…

For the people using it that it works with, is it buggy? Is it stable enough that I could i could consider installing it in a hostel?

Alot of us on here have built fully working setups using various designs. I’m running a 3 tap system (expandable to 6) with an Nexus 7 (rooted) for the front end and a digital ocean server as the back end. Swiss flow brand flow meters talk to 3 keyboard pro minis that I picked up during the company’s kick starter program.