Placement: Great idea. Please continue, variations in these matches propel people too high or too low. They will climb which is fine. Those that end up too high though is a problem as it hurts others.
Matchmaking: solo/duo queue has greatly improved matchmaking. Teams and opponent seemy to have similar rankings. Matches feel more fair. I can see that we were outplayed or outplayed the other team. Not just vastly better.
Balance: pvp only splits are making balance better. Still some skills that push the limit of acceptable.
Rewards: lots of gold, promotes main game focus, pve. “New” skins seem lazy.
Suggestions: more ranked maps. More pvp skill splits. More unique skins.