This puzzle caught my eye because it looked like it may be particularly difficult to solve. I was right. I own a few tricky ones and this outclasses them all.
It turns surprisingly well for its complexity, but is really difficult to take apart or put back together. I’m halfway convinced this thing would still be relatively functional without a core.
If you want a nice jumping off point into non-WCA puzzles, this is probably not for you. If you like a solving challenge that involves jumbling and multiple independent orbits, there’s hardly a better choice.