Not sure what it's like on PC but on xbox it's 70 max people and it can take upto and sometimes over an hour to get into the server you want to play on. Which I don't mind this is a VERY popular game atm.
Thing that is annoying and could easily be improved is the joining of the server. A join queue. whether it tells you you are 1 out of 1 people joining or 16th out of 49 in the queue just something so you don't have to keep spamming join every few minutes and this would also give you a general idea of how long it would take to get into your server.