Rode the shit out of my 230 all last year after upgrading from my crf 100. Thought It was wicked. Then I got on a real bike. I am also a bigger person than you so it might be different story for you. Should be a good beginner bike. Than upgrade to a 250f or something.
Totally two different types of bike, I have both. The 150RB is a high rpm, quick 0-60 bike with professional suspension. The 230 is bigger and better for trail riding. Higher top speed if you need it.