I gave this to my son last Christmas, but it hasn't seen a whole lot of use.  Putting it away is irritating, as all the pieces have to be just right in order for it to close. This also means that it has to be set up again every time we use it.  Drainage is a big issue.  Perhaps in a backyard or with a hose this would be better, but it doesn't work well in an indoor setting.  It's a shame, but it just didn't work well for us.