It took me 1hour to build by myselfThis was the best purchase I have made for my grand boy. I can place him inside and not worry about him getting into something or possibly injuring himself. Placed down foam matting for cushioning. Perfect for new crawlers. Bought the 22 panels and it’s huge! But can easily remove panels to make smaller. Add panels as our grand boy grows.This product has worked great for our son and makes his own play place away from our dogs and the rest of the house. It can sometimes get wobbly and you just need to make sure the suction is even. We wish we got a bigger size, but are very happy with it.No instructionsIt doesn’t have the screws seen in the reviews anymore, has a great suction to the tile floor (haven’t tried on different surface), it’s pretty strong and stable.I bought the 18 panels and I made a rectangle size 82”X52” inside dimensionsVery big playpen! Perfect and fast shipping!I bought this Panel Donut Safety sturdy play center yard for our 8 month old .After assembly the unit completely looked a little smaller in height compared to the product in pics. Other than that completely happy. I know sometimes its better to double check the dimension's and stuff on the product descriptions but i am one of those persons who guestimate based on the product pics :)I bought 1, had a missing connection. Company said they'd send me a piece, never did. I bought a 2nd one to expand the area for baby, and was able to complete the set using the spare piece from 2nd set (they send 1 or 2 extra pieces in each). Assembly is hard on hands. Do not bang or use tools because you will brake the connection pieces, but good luck getting them on there.Keeps baby contained and away from dog. Can be adjusted to fit any room.Color is off - the blue they offer is like a light blue mixed with a mint-green .I look forward to using this for our growing family.Suction cups - didn't hold great on our floor (probably the porous flooring, not product flaw) so baby had to learn she can stand up to walls but the bottom will slide if she's not careful. Because of this, baby is able to push a wall side out and affect shape of pen (but not escape) even though the connectors have a "lock" between each piece, the lock doesn't take much force to give way to a determined baby pushing on a wall-side.Hope this helps. All n all, great purchase. Dog and baby are kept separate and baby is safe and clean and not climbing things that could fall on her. Would buy again.