I'm testing this miner about a week on few rigs, but have mixed feelings. Ammount of info in console = great. Readability of these info = very bad (I wrote about it few days ago). Reported hashrate about 1-2 Mh/s higher than Claymore. But. This is just a teoretical number and what matters are accepted shares. And with Phoenix I have less accepted shares last days then in Claymore.
Sometimes it has weird behavior - autostarting miner after reboot gives me sometimes very high accept share time, about twice as high as normal. Quitting miner and starting it again solve this sometimes.
On rig started restarting itself, after running few minutes of Phoenix. (NVidia GPUs)
Tried a lot of testing, -mi settings, but I still don't have a feeling, it is the best miner. Time will show... Keep up good work, idea is nice. Thanks