Ok I just gave this a spin, thanks for the work on this by the way. Tested on 1.38 (Windows)
I have a 1660 Super and a 5600xt. When I launch the miner it says no opencl devices found. It does find my nvidia card however.
On Phoenix miner I get 30.215 MH/S. On NSFMiner I get 29.97, so its comparable. I didn't test the power output or anything like that.
I would recommend putting some example bat files in with the release archives. Most people are too lazy or confused to read the documentation and create on themselves

pretty good results, given that the miner has no commission, as compared to the phoenix