I received my Magic Combo 10 Commercial last week, just in time for my 3-year old's birthday party. I went with the commercial over residential because I wanted something that the kids wouldn't quickly outgrow, and I think I made the right choice. I was surprised at how heavy duty this bounce house is. I had up to 8 young children in there at one time and everyone was having a blast. When things slowed down, a few parents got in and were able to enjoy it as well. I'm a bigger guy, and I felt comfortable getting in there and sitting with my daughter while she jumped around. My weight had no effect on this heavy-duty unit. The biggest compliment came from another father at the party, who owns a Blast Zone residential model, and was pretty knowledgeable on the product line. He told me that after seeing this one, he regretted not spending the extra cash and going for the commercial grade. I made the right choice!