Since I have experiance with the 230 I thought I would do some comparing. Man that little 150 is starting to get my attention. Sucker has almost the same ground clearance as a 250! Have you ever compared them!
Only thing I'm thinking is a 65# lighter bike might be nice to learn on. She is tough as nails and I'm sure she could handle the 250 but it may wear her down on a long ride. Plus she weighs nothing so I'm not sure the 250 wouldn't be over kill.