I had been looking for a bounce house for several months and was glad to hear a friend loved her Blast Zone bounce house! The reviews were very good and so I decided to go for it! Our girls, 4 & 1, are loving it along with the neighbor kids ;). The blower seems more quiet than I thought it would be so that is nice! I didn't realize how much the bounce house would move on our carpet (we've only used it indoors so far!). SO I can see how the sand bags would be helpful to keep it in place more. Happy with our purchase and telling our family and friends about this bounce house!