As a rock and for the puppy. It worked great.I love the size of the product. I wanted a play pen that i wouldn't feel guilty setting my son into while I do dishes, read a book, etc.... it works. Two thumbs way up for overall helpfulness.I have hard wood floors and was excited for the suction cups to hold it in place, they worked awesome for about 3 days. Hard to keep your floor super clean with a toddler and the pen now moves. I took some paracord and rigged it around the entertainment stand, low and tight enough not to worry about a choking hazard.The panels can lock into place with the top piece in between each panel. Lift it up to be able to fold the panel, push it down to lock it in place. Some what useful feature and at the same time, not. My son can rattle the walls to loosen the top enough to make the top lock come undone.At the bottom in between the panels you might notice the thick plastic piece. That goes over the suction cups and helps to block the pieces from folding. Useful yes, but while they are on, you obviously can't fold the play pen down.Hence part of the bad (partially self inflicted). To clean his play area is a full evolution. 1. Child out of play pen, hopefully napping in his bed. 2. Clear out all toys. 3. Take all the pieces off the bottom in between the panels off to make it foldable again. 4. Unlock the top piece inbetween the panels. 5. (Due to my paracord) fold panels in towards tv, otherwise you would fold it up normally. 6. Sweep floors 7. Steam mop floor 8. Unfold play pen and set shape. 9. Lock down top pieces and reinstall bottom locking pieces. 10. Throw a few toys back in.Overall: my son loves being able to have the ENTIRE living room to play. Which makes our lives easier. Does the product live up to all initial hopes, no, but how many products ever really do. He hasn't been able to open the door. The play pen itself has never hurt him.P.s. the opposite side of the pen from the baby door does have a push button and a couple roller style wheels. My son could care less, he likes his toys and climbing obstacles.Installation note, especially OCD people, not only does alternating the colors matter, paying attention to whether the side of the panel has a fish or an octopus will save you grief. Because once you lock the top pieces on, how it's built is how it's built unless you want to risk the stability of the pen.We ordered the biggest size which fills up our dining room perfect. Added a rug and a nugget and it’s the best playroom for our daughter. A great size and pretty sturdy.Left two pannels out! A bit flemsy wouldnt recomened for a todler the likes to push or hold onto things. Works great for littersI’m in school full-time and a single mother with little to no physical help. This has saved my sanity 2x since yesterday. The first being a class lecture I really needed to flip through a textbook for and the second was to get dressed. Usually I’m multitasking at an insanely high level to keep him safe, occupied, and happy while I do these things, but now he can hangout in the playpen for a few minutes while I do my thing. It was simple to assemble and he loves the squeaky blue button. 10/10 would recommend!!! I bought the 22 panels and tbh if I wanted to I could definitely fit a mattress in here for cosleeping naps.We really liked the product, it's great, but it wasn't quite what we needed. Unfortunately for us, I didn't realize that this item isn't "Prime" and the return shipping costs more than the item. If you order this, be sure you're going to love it!It was “easy to assemble but took forever had a billion pieces. When I went to fold up it broke so if you keep it in one place good but if you need to fold it up I do not suggest