I have that cage, the Ritz Condo one.
I personally find cleaning to be a breeze, but since I had an aquarium for so many years, my standards are pretty low, I'll admit.
I have it for two girls, and it is definitely a little on the small side. I try to make up for this by taking them out and playing with them for an hour or so twice a day, and usually three or four hours at night (well, I don't PLAY with them the whole time, but they have free range of my bed almost all evening). If I couldn't assure them this, I would definitely get a bigger cage. All they do is sleep in there- if they were actually awake, and only got a half hour or an hour outside of their cage, it would be way too small.
Take out the wheel- I just did this, and even though I haven't replaced it yet, I feel like there's a better way to use that space than they gave me. Cover the wire, move the bottom ramp to make it another shelf. I'm going to try to make another shelf up above where the old wheel used to be, depending on where the new wheel fits.
I personally like how solid it is- I used to have a pretty flimsy cage and I could hear my rats wherever they were.
But you should get a bigger cage, if you could. I'm just too limited in space, otherwise I'd be saving up for something bigger myself. The five story one would probably be great.