I have this cage!!!
Its HUGE.
-Bar spacing is fine. I have females and they are smaller than males. We have had no escapees!
So much space for toys, hammocks and everything you need to keep ratties happy!
You will want to use fleece to line the pans though. I have used both bedding and fleece in this cage and they will kick the bedding out, making a huge mess on the floor!
Brilliant cage. Worth the money!
(I got it for cheaper on Zooplus. £180 on there!)
This cage is the UK version of the Critter Nation and its brilliant.
Tip: Assemble the cage in the room you plan the cage to 'live' in. It's really really heavy and it bearly fits through doorways.
I'm 5'1 and its just about, taller than me. Thats how tall the cage is! (Including the stand)
But yeah, its a brilliant cage, easy to clean, the doors are great because they open so wide. Urm... The coating on the bars is really good! I've had this cage for about a year now (well.. nearly) and there is no rust on it anywhere! (I wish I could say the same for my old cage...)
The downside is that the smaller levels don't really fit on the supporting frames, so it can be noisy when the rats jump onto the levels. But its fine, its not like it falls down or anything. Its just not as stable as it could be. And obviously as I said earler, that if you wanted to use a substrate (say, paper pellets for example) then its not really a good idea because they will kick it everywhere.
Worth the money! My girls LOVE this cage!