Fantastic beginner bike. The CBX250 is very stable and does not respond erratically to mistakes, such as hard downshifts on loose gravel or dirt. Also responds predictably when locking up the brakes. Power is adequate but mild with a smooth power band, also good for beginners. Braking power is awesome, allowing the beginner to make up for poor judgment as well.
The bike is a 250cc so power levels are mild. Had little trouble on the highway, generally around 110km/h, but as high as 140 at times, and is the equivalent of a generic 4 cylinder car in the city. Acceleration at highway speeds is predictably slow.
I have ridden the new CBR125, and found the power plant in that bike was simply too underpowered for highway driving, and another friend and I both prefer this CBX250, despite the age.
At 6'1" 240lbs, I was worried I would not fit on the bike or it would have trouble dragging me around. I fit fine and with the gf on the back we top out the weight capacity on the bike, and it still goes just fine.
Most will outgrow the 250 in one or two seasons, but this was the perfect bike to make mistakes and learn on without getting myself into trouble. It's used, it's cheap and you can sell it to the next new rider knowing that it will be the most responsible investment you can make to yourself and new riders to come.