I had one issue with the Tourney: That was the mismatch battles in the Tourney, especially in the first two weeks. I was in the 4100 range before and went down to 3100 in the first few days (after the 3500 reset). There were just too many higher-level players in that range that the game chose for battle opponents. It was not much fun facing some of those one-shot monsters.
This lead to higher level players who just wanted to battle for incubators, not in the Tourney, remaining in a lower trophy range. Or had given up on the Tourney and just battled, not caring to rise in Trophies. They slowly worked their way up but were still chosen for battle opponents for most of the tourney. It seems the system never worked itself out, to where we would battle similar level teams.
Now it has worked itself out, most players are about where they should be for their teams, at least the ones I battle in the 4000 trophy range.
I did not really care about the trophy reset, I only battle for incubators not position. One arena is the same as the next for me. But when I do battle it is always nice to have some even competition, where either of us could win… depending on who gets the RNG gods on their side.