Should i buy this game? Ive seen mixed reviews
The experience will swing wildly.
If you are in a good team, the experience should be varied and meaningful as people attempt different strategies to save the princess. Raiding a castle can be rather exciting. Some in the team would know how to build a good defense too.
If you're in a bad team while the opponent is strong, you may spend the entire game patching the castle (as a worker) as it is under siege constantly. You may also struggle to claim a strategic outpost alone, and have no time to attack. You may even be the only one who feed the princess. These days, the game will be over quickly.
If both sides are average or on par, then you can choose to play alone (like a deathmatch). Sometimes I switch half way to an attack class because some guys play it like a deathmatch.
For me, the game is merely a short distraction from work. So I don't mind the flaws. I think the platform has great potential if they improve it further (I can see custom "player hero" work in this game). Also, if you end up buying the game, you should check out the Fat Princess soccer match. It tends to degenerate into button smashing, but oh boy, are gamers violent.
EDIT: Had a 7 game losing streak. The opponents were really strong. Each game ended well under 3 minutes. My team was rather noobish but we stuck around long enough to learn from our mistakes. Managed to outrun the rest and won the last [strike]one[/strike] two... and then the game host quit.