It's a great game. I like the fact that your minions get XP even if they die during battle. I like that it's similar to Pokemon and your minions can evolve. It does involve some grinding and picking the correct skillsets can be important during the later levels. The ONLY thing that I don't like about it, and it isn't actually about the gameplay side of the game. If you've got a high resolution monitor it doesn't let you take advantage of it, because no matter how far you zoom in, the game window size stays the exact same size. Apart from that one thing, this game is absolutely perfect.
If you're having problems with people quitting and you want the badge, just load up the game in another browser and play against yourself and you can easily get the 5 wins. Or another method for people who don't want it to be so easy would be to get a friend to play against you, that way they won't quit. The last method may take longer to achieve. I recommend only trying the first method if you can't get anybody to stay in game with you.