I bought a bunch of the R-series stuff to build a Joyo-only budget pedalboard for a friend, but then he bailed on the idea, so I'm going to be putting them up for sale shortly...Baatsin, TaiChi, XVI, Zip Amp, Uzi. All basically brand new in box.
They are easily the best bang for the buck pedals on the market right now. Joyo really stepped up their game with these in just about every way. Great sounding, well thought out, and the construction is far and above what other "budget" pedals offer.