Gave multiplayer a try against a buddy. His Frieza Clansman vs my Saiyan.
Round 1, timed out with me having more health remaining. He was in the middle of wailing on me at the time so this could have gone either way :V
Round 2, a very close victory for me, I was in the flashing-red stage when he finally got knocked out.
Round 3 I sorta dominated, still with loads of HP after I nailed him with an ultimate. He got some pretty good licks in though.
His character had more stamina than mine did, and maybe it regenned faster, because he was getting way more flashsteps off than I was. I think the only reason I was able to prevail in close combat at all was because I had good timing on the backhand attack, and managed to land several stamina-draining hits that left him open. He had mastered the throws though, very annoying

The battles were surprisingly stable despite our connection not being all that great. Only a couple of minor issues but no lagspikes on my end.
All in all, a lot of fun.