Rising Force Online is a MMO for people just starting out in the MMO "world"
I pre-ordered the game and played the beta. My first thoughts were, "Hey this game doesn't look too bad. It's not set in the medievil times like most MMO's" After playing the beta for about 2 hours I realized the game gets repetitive QUICK! The quests consists of no more than killing 20 monsters here and 10 there. If you enjoyed the PvE of WoW then you will get bored quickly with RFO.
If you can manage to play up to level 25 then you can engage in "Chip Wars". This is an all out battle for what they call a "Control Chip". Three races, which include, Bellato Union, Holy Cora Alliance, and the Accreatian Empire, battle in an all out war to see who can "capture" the other races CC(control chip) and bring it down the the Crag Mine. If you do infact win the Chip Wars, you are rewarded with 7 hours of mining, a couple thousand currancy, and some contribution points. Contribution points are basically given to you when you complete quests, win cw(chip wars), and killing another character from another race. These points add up and you could become what they call a "Race leader", which basically means you can tell your whole race when CW is.
If your into the PvP MMOS then by all means go out and get this game, but if you love MMOs that have PvE, PvP, depth, and alot of context to the game then I would suggest purchasing WoW(World of Warcraft), EQII(Everquest 2), etc.