I'm moving soon, and wanted a cage that was mobile but was at least big enough for two guinea pigs. This was a rare find for me. I had one of those Petsmart floor cages and had it in my closet, which was obviously not ideal - and I got to say I am really liking this cage much better. Clean up is going to be ten times easier. I placed fleece blankets over the grid floor since piggie feet should have a gapless floor to walk on. Since the blankets are bigger than the floor, I just folded one side over to fit it and placed the water bottles on that side for excess water to drip. I placed a small blanket to cover the ramp platform and one of my piggies already likes to lounge there. Now as for assembly... I actually assembled it easily and quickly. It took 30 min for me. It is faster if you have someone helping you but I assembled it alone. Yes the parts are NOT labeled but you have to envision how the pieces would fundamentally work, e.g. the slider bar pieces at the bottom would of course face a certain way for the screws to go in and the bin to slide through. Just be careful about where they face. Overall assembly was good, my only problem was the darn ramp. For some reason that was insanely difficult for me to situate in the cage and I had to pop open the top and side doors to properly get it level with all the latches sitting on the bars. I was frustrated with that part about it but once it's firmly in place, you'll be happy with the result. The last thing I need to mention for anyone purchasing this: Make sure the black inserts for the rolling wheels are actually there at the bottom of the bars where the wheels are inserted. I didn't realize one popped out and was still in the box (thankfully) so inspect your parts carefully before tossing things out. Personally I really like this cage and it is sturdy once it's put together.