I got the Playzone play yard and I love it. I have 6 sides for it along with the door area. I use it sometimes with just 4 sides if just one infant is here and if everyone is here, then I open it up and use it as a barrier to block the livingroom area off so the 2 babies I have cant crawl out of that room.
Some people dont like them, but I love it. Works great for my set up