Mobas are usually well thought and executed games when it comes to mechanics, they are complex games so in order to get released and played they have to achieve certain levels of quality, I remember Heroes of the Storm to be pretty good on release, you could play as many iconic characters from Blizzard games, and the games relied a lot on the teams instead of individual players, which was also a pretty nice touch.

I know that the game got worse and worse just as Blizzard did, but i dont really have an opinion since i stopped playing it on 2016.