For what it is, We Heroes at first seems to be a pretty decent way to kill some time. There are a variety of game modes and a lot of heroes to collect and play with and plenty of free giveaways that dont end up amounting to much. And as it turns out there are "correct" heroes to develop and most of the roster arent even worth having at all.
The grind to develop heroes is prohibitive such that investing in a wrong hero can be crippling, and certainly by player level 50 the game is designed entirely for big spenders and becomes much less fun for those of moderate means let alone free players. By level 60 if youre not willing and able to "pay to win" then dont expect to get anything more out of the game.
My advice would be to try it if you have to, but do not invest more time or money that could be better spent just about anywhere else.
Radouigi about We Heroes - Guild War