If you enjoyed the first you'll enjoy this one, it's a hell of a lot better. Gone are the days of AC charging, standing there like a lump while your combat ring fills, not being able to knight with your avatar, etc., etc. GR max is 30 (for now) but the requirements have been lowered around the board. I'm GR 21 and the total to 22 was only 2.1 million I think. The days of BR2 are over and have been swapped for OGIT II-III (Only Game In Town - via Greede) which I find to be a lot better for the cause. It takes 2-3 minutes to run OGIT III and it nets (with GR ticket, not sure about without) 37,000 points. However, the game isn't an OGIT only affair, there are no shortage of rooms running other quests, but when people want to rank up quickly, that's the spot.
If you have your WKC save file you should be able to get to GR 16-17 without even going online, from GR 9. I started at GR 5 and was able to pump up to 13-14, I forget, before going online. There are errands quests littered throughout the cities now, most of them are talk to X, talk to Y, return to X, profit. Some require items, but most of them can be gotten through other errands, heh. Anyway, these give a lot of GR points. There are also bounty quests that send you after boss type monsters on the maps, these also give GR points.
More importantly, what the hell is up with your Bills? I thought they had all but forgotten how to play football there in Buffalo!