My experience with the matchmaking in game is that the players are fine and ive had few issues. Ive had more issues with lfg players. An advantage that also shouldnt be overlooked is matchmaking is with players from your own region whereas lfg groups end up being spreadout across the globe. This has often lead to people quiting as it becomes too laggy. Im all for optional matchmaking and feel the limited matchmaking we have is working well.