They are soft boards that are great fun to jib, and they spin so easily because of their size. Great to butter on. But they may as well have plastic edges on them, they do not grip unless you have really fresh groomers or pow. And if theres more than an inch of pow you'll sink! So if there is any hard-packed snow or you carry any speed on them, things start to get interesting.
If you look at one as a toy to do backyard and early season jib sessions on they are great. For anything more they are a waste of time. I had fun on one for about 1 hour and now I am over it for good.