Edit: when not buffering quality was always 720hd. But it buffered a lot.
Ex user who quit Feb 2018. I was with them and used smoothproxy with perfect player. I also used their kodi addon. This was on my 2gig android box hardwired on 100/50 MBps lines. Never used their .apk. buffer buffer buffer. I also used smoothproxy and perfectplayer on my samsung tab A tablet. Same issue.
I saw they had open invites last week and went to their twitter seems lots of replies to their tweers with issues watching american football.
Again its been 6 months since I used them. Maybe improved.
It is important to note I am with mystreams and they use vaders and Ive had almost no issues despite a lot of users saying they are having issues. So take that into account. Im happy with mystreams aka vaders while 95% recent reddit posts shit on them now. So I could just be weird.
I set it up on Kodi last weekend for the Friday night game and it just kept buffering. Quality was great the 30 seconds or so it would actually play. No connection issues. Everything is hardwired and I'm pulling the max 100mbps that the Amazon firetv is capable of. Will try one more time this Friday for the falcons game