MMO: "2Moons"

+ played this more than any other MMO I think
+ decent/cool graphics, cool level designs, cool animations
+ excellent economy (player stalls, items can be upgraded indefinately)
+ very fun to grind
+ good PK potential

- very linear world, tiny range of skills
- imba PvP (one class dominates for a range of levels)
- botted to death
- might be fun to grind, but you'll be solo grinding the same dungeon maybe 50 hours non-stop, over and over and over....
- anti-PK hardcode means you might have to change servers
- fucked by botters
- economy also fucked by botters but you can still become extremely successful with intelligent trading

Summary:
Updated version of Knights Online. A huge time-waster, but I don't regret the countless hours I spent buy/selling for profit (although you could pay a botter $10 to achieve the same)