Air Climber... anyone?

Ok, so maybe some of you have seen an infomercial about an exercise system called the 'Air Climber'. It's like a stepper and you can also do strength exercises with resistance cords.  I recently bought it (yea.... I gave into the infomercial :)

if anyone else has tried it, let me know how it has worked for you. I've only had it four about a week and I actually like it!

I too am looking for information. I weigh about 280. Do any of these air steppers/climbers hold up for me?