1. Matchmaking is terrible, there is no separation from 3 man+ que and solo. Nearly impossible to reach challenger solo because of this and rank inflation leading to +15 -10 LP games. 2. Very small/slow updates means the game gets stale very quickly. The only addition to the game each month is only 1 new champion, not enough to keep me engaged with the game. 3. Lack of communication from developers. A lot of issues are brought up on how to improve the game but are not acknowledged. 4. Etc...