I felt the same way but broke down and started using the 100. But lfg sites are just matchmaking that requires you to go out of game. In both cases you are teamed up with random players that you don't know. Some will be afk, some will be unhelpful and some will be unskilled. With lfg you have to go outside the game and online to find them. With matchmaking it happens quickly and in game. I've never understood why so many people feel lfg solves the problem with matchmaking.