I've never seen a sled that made me feel safer. You can really fly, but the soft ride and the maneuverability of this beast make you feel totally in control. We have one of these, and a 130. This is better for a full-grown adult. Easy to ride on hard and soft snow.

I bought one of these for my girlfriend who has bad knees and can't ski or snowboard without being in pain. It seemed like a good way for her to enjoy downhill runs in the backcountry. So far, it's been okay, but not stellar. We took it out on a couple of deep powder days near Tahoe (18" of new snow) and here's my take:
1) The Airboard itself is sturdy (thick PVC) and has heavy duty rubber on the bottom. I'm not too worried about punctures.
2) Setup is pretty easy. Pump it up and you're ready to go.
3) The pump is compact, but looks a little flimsy. I'm a little worried that the pump will get trashed in a wreck, but I'm sure we can buy another one if necessary.
4) It requires a pretty steep hill in order to get moving - steeper than I needed with my powder skis. I imagine it'll be easier to get moving in snow that's a little less deep. That said, you can always take a running start and jump on it.
5) Once it gets moving, it's a fun ride! Totally surfy feel. Bumps are great - face shots galore! Getting forward on the board helps with speed and turning. It's not as quick turning as skis or a snowboard, but you can direct it pretty well.
Aiming to take it out again next season and will update my review as we get more experience with it.