I had Imacs for my Syrians
I do like them but I just got a dwarf and didn't personally feel it would be ok for her (my Syrians chewed up the rubber clips and the ends of the tubes) so I got an Alaska which I love! But can always add mesh onto the bars to help secure it better if you decide to go with the iMac for your robo.
Might be quite good for a robo! But gosh the cleaning is a pain especially when you have a lot of levels and you're having to keep getting in there to clean up the pee LOL but good for space going upwards without being dangerous falling from height!