We have 2 lounges for our piggies and I may be getting a few more (8 pigs, 5 cages). The improved coroplast ledge really helps contain the mess and my male pairs love hanging out on these. I love their simplicity. These are used all the time, more so than the party patio in one cage and the wide loft in the other. The price is definitely on point and it’s worth getting this all at once for the instructions, they’re very helpful.
The lookout lounge is a super fun addition to our 2x5. Basically, if you can insert/pull a zip tie, then you'll have no problem with installation. It's an engineering marvel: fits perfectly, all parts line up just right, sits sturdy and securely. If you're particular like I am, you will appreciate how precise the carpeting is attached and how the roof fits just so. My two buddies love the Lookout Lounge! (I'm kind of jealous, actually!)
My piggies don't hang out in the lookout so much, but they LOVE IT for it's zoom-ability. They previously didn't zoom very much through their last cage, so I thought it might be a good chill spot, but since I got this they've been more zoomie than ever in the best way possible.
Since my guinea pigs have been growing, I wanted their cage to grow with them. Being tight on space, I was hoping this little extension would at least give them more space to run. I did not expect them to use it as their new favorite sleeping spot. Mind you, I have fleece beds, tunnels, fleece forests, and even a corner hammock, so they have plenty of places to nap and hide, yet 80% of the time I see them in the Lookout Lounge. I have two adult, female guinea pigs and both fit comfortably with room to spare even while stretched out for a nap. They love resting their heads on the corners, when paired with the Lookout Lounge complimentary fleece set. When they're being more active, they will run and race through the Lookout Lounge with glee. I think they really like how they can see out while also being covered and feeling safe. My family and I joking call it their "Bus Stop" because it looks like a couple of ladies waiting for a bus as they sit there. Seeing as it's constantly in use and very sturdy---even when my 1 kg heavy girl is running through it---I give it 5 stars.
I absolutely love this addition to my cage. I will say that the ramps take up about a grids worth of space, so I would keep that in mind if you have a smaller C&C cage. I have a 2x4 and it fits well, but I think the 2x5 would be better! My girls use this for zoomie laps and it is definitely a favorite!