update: I set it up on my lawn and it is great. 
I have not been able to take it out of the box yet. the outer box was open when it arrived, but the inner packaging appears to be intact. I will write a
 review when I get it set up, which won't be in the 
near future, because I have to get the location cleared off. I set it up and had it well secured with cinderblocks filled with stones, I thought it was secure until a storm came through and the wind destroyed it beyond repair. I never even got to use it.