[cypher]

I'm totally unconvinced by the Kios then!
You need a good 15cm of substrate plus maybe 20cm for the wheel (a little more with the stand) & I think that's more than the height of the kios in total so it just wouldn't work.
Other than that it comes down to personal preference really some people prefer tanks others cages, lots of people do keep robos in barred cages with no issues at all.
My personal choice would be the savic mickey mostly because I really like to have a good size door on the front rather than the top of a cage but it is an expensive option so I would say if that is an important consideration the Grosvenor is the best option.