Bounce house is very sturdy and as advertised!  It ships with one blower, but it has two places to attach them.  I would definitely suggest purchasing a 2nd, as we had trouble getting the bounce house to stand all the way up with just one.  However, it also may have been due to the fact that there were a couple places where the velcro wasn't secure and the air was leaking (we didn't notice them until we put it away).  My kids (6 & 9) spent the entire weekend on it, they love it!