My son loved going down the small indoor slide that his cousin got for her birthday, so for his birthday I decided to get him one.  I thought since he's a year older than her and loves to be outside, we would check out larger, outdoor slides.  We settled on this one after seeing all the great reviews.  As we were hoping, he absolutely loves it.  It's tall enough to be fun for a while, and I like that it's sturdy with the stabilizer legs.  Nice that it folds up too.

Pros: Sturdy, folds, easy to assemble