For those that don't know, when the server is down it removes the patch which effects gameplay and stats of players. All the shots are easier except the serve and if you thought there was no such thing as an unforced error before, just wait. And you can make shoe string shots all over if you know what ur doing.
I suggest if u have never played under these conditions you play a few practice games with ur opponent before you play the match. Last time the server went completely down it took them a few days to fix it, and this time we are headed into the weekend, I don't see anything being fixed fast.