Look, whether you guys like it or not, 2B as a guest is one of the best things PS could have done to bring more attention to the game. They're just thinking about the future and if all goes well, hopefully we'll get another game.
Small complaint but I wish SC would implement the thing Tekken does where you can scroll through the movelist on the gameplay screen in practice mode without having to pause every time you want to check the notation for something.
After playing through SC/LoS, it's obvious that stages in the game were developed to accommodate them. Its why we don't have many stages which are too specific to one particular location.
The lag cleared up for me for the most part, had only like 1 match where it was really bad.
But man, I love this game. NM is a BEAST, played like 10 games and I haven't lost one with him.