Personally, I really enjoy my Lil' Mynx- I don't have a rotator, and I wish I'd known more about dancing and the varieties of poles out there, so I could have gotten one! The availability is really nice, I think, though I'd be wary of doing spin-mode right at the beginning of your dance journey.
Powder coated, in my experience, is SUPER grippy! My best friend has one because she gets extra-sweaty hands- she can't dance on anything else, she'd just slip off. For me, however (mostly-dry hands), it's VERY sticky, especially when cold, so it's a lot harder to achieve things like spins on it. I imagine it would be amazing for climbing and poses, though!
Mine is "removable" in that you can take it down, and put it up, very quickly, but it's all in one piece. I likely would have a hard time trusting a pole (personally) that came in many pieces. I've heard unfortunat stories! However, I'm sure there are some here that just love their multi-piece poles, so... to each their own!
Hope your pole turns out to be everything you want it to be... whatever pole you choose!