Not sure if this helps anyone make a decision - but these are super high quality rigs developed by a super high quality guy who is responsible for the Moonlander, Moonlander 2 and now this rig... Even with beta version 0.0.1 of the mining software based on Minera, it's super stable - I have quite a few of them myself, and they run without interruption for weeks at a time. Software is in active development.
Yes, given you can get dumpster rate on L3's for lots less per MH, but that Chinese garbage doesn't hold a candle to impression you'll get with a few of these on your desk. Try that with an L3.
Anyway, if you have any questions from someone who has owned all of JStef's rigs and this one in particular, drop me a PM. Happy to help.
Peace,
r00t