I bought the desktop ping pong to have it at work. It is a good laugh to have a game on Friday afternoon when the office is quite. The suction cups are not really good, but nothing that a bit of tape can't fix. I am amazed with the build quality, we had them for 2 months and still as good as new.
If the ball gets squashed on the post, just put in a cup with boiling water and it will be round again!