The ingame rank progression isn't distributed properly. For examle, I would get 1 rank progress (pip) 2 games in a row which means I should have 2 rank progress now. 
But that isn't the case always. I sometimes have 0 or just 1. 
I have no idea why or how this is happening but it certainly makes you feel like playing the game is not rewarding if you end up doing well in the match.
I feel like this is making players less motivated to play the game.

One more thing. It's really annoying that you cannot see other people's ranks in the after-game loby. Sometimes it can feel like you are playing with rank 20s but it may or may not be the case.
You can't tell how good matchmaking actually is and most of the times people just assume that it is awfully bad.

On the other hand, from the gameplay perspective, things are actually amazing (even though there are a few glitches and hitbox problems but that has always been an issue for BHVR). The game plays well, controls may sometimes look and feel difficult but it isn't so hard once you get the jist of it.

What's more, the mobile version seems to be lacking in playable characters unlike the PC or console. On console and PC the game has more killers (them being Freddy, The Oni, The Deathslinger and soon to come Pyramid head - the corespoding survivors also happen to be missing (except Quentin - Freddy's survivor)).

Besides the mentioned characters, there are lots of maps missing. Like Mother's dwelling, the Temple of Purgation and The Dead Dawg Saloon.
It can sometimes burn players out to play on the same maps again and again. 
With breakable walls being added to the games, it's adding onto the fun factor of the game.

With all that being said, I would totally reccomend the game to anyone who enjoys 3rd person gaming and horror games. This one can certainly get your Adrenaline pumping (perk refference).