let me tell you something... im a chick rider. im a little taller and about 125lbs. i have short inseam and i can ride just about any bike fine. Its not so much of your "height" you have to worry about when considering a bike because you can lower them via the suspension and seat. the 250R is definitely a fun bike whether commuting or in the twisties in the mountains but youre going to get bored of it.
I had an 07' gsxr 600 and it was slammed. forks were cut and had rear dogbones, handled like a dream in the turns. just learn to go and move on your bike and eventually youll get used to just tippy toeing on one side of the bike and having the bike lean slightly.
250 is a good beginner bike. have fun!