Thanks! We have a manx and he figured it out immediately no prompting at all - he's amazing like that. Our other cat is "regular" it took her some prompting but she eventually got with the program.
The idea was hatched, as all good ideas are, over beers between my wife and I. We needed a way for our two, alas getting older, cats to get in and out. We had a chair but figured eventually it would be too tall of a jump. So why not a spiral staircase. It took awhile for them to figure out how to use all three steps. I kinda screwed it up, I reversed the pattern of the bottom tread so it doesn't look as "spiraled" as I wanted.
It was my first attempt at laminating boards together, and trying to create curved "angle iron" (bending and welding flat stock together). It went "ok", not the "stunning look" I was going for, but it works and the cats really like it.