Instruct: Classify a review as either positive or negative.
Query: Happy Mom

My 2 year old son received this for his birthday. I can't say enough good things about it! He absolutely loves it. The sides are the perfect height so he can go in and out on his own. The top has not blown off in strong winds, and I've never seen any water or bugs (thank goodness) in the sand! My sister's old sand used to be damp and have spider and ants in it. I was worried, since I know my son would play with them. No insects here!We only filled the box with half the sand limit. I think 100 lbs.. Perfect!