Game is decent, unfortunately updates consistantly wipe progress, so expect that. Publishers are known to not give people microtransaction refunds after a character wipe.
Every time there has been a character wipe, they say they will correct it next time, but they never do and it's been this way for years. It's come to the point that people just accept it and most people don't even complain about it anymore. Unfortunately it's not something you will see listed on the store page or in their microtransaction shop.
Recently there is a new issue with this game. Some steam users that didn't link their account to an email are no longer allowed to access their RotMG account. I happen to be one of these users, yet another slap in the face. As far as I know this only is affecting steam users and those affected have no way to play the game through their steam account, they can't even start over.
If you are absolutely certain you won't be spending a dime on this game, it might be worth a try if you like dungeon crawlers, it's about as good as dungeonland but with worse graphics. Otherwise stay away, spending cash for temporary items is no fun, losing all your hard work is even less fun still.