In terms of quality from MTGO I think for a piece of software it's somewhere close to the best we can get at simulating a magic game.
I hear this a lot, but there are free alternatives. I don't get why people keep trying to play on MTGO when it's full of bugs that shouldn't have existed in the first place. On top of that, it requires you to pay money for cards that will continue to devalue and look worse than scans of actual cards. Why endure that for a program that Wizards is not incentivized to keep on life support?