From my experience it's difficult to know what will work for each person, as weather, sweaty hands, etc. are different. I also learned on a stainless steel lil mynx and it worked okay for two years. I did struggle with it being slippery but was able to progress. Once I began interm tricks, etc I had to change poles. I got an xpole xpert 50mm titanium gold. It has great grip; however, I struggled with spins because it is so grippy and my body got "tore up" since I still have tendency to have death grip, etc. Right now I am practicing on an xpole 45mm chrome and "love it!" It is not mine; however, and once it goes to its new home, I'll order my 45mm, still not sure if I'll get chrome or titan gold.
I also go to a studio that has stainless steel platinum stage poles, both 45mm & 50mm. I also like those poles and don't have problem with being slippery, probably because they are "broken in."
As you can see, there are many options. Drives me nuts since I'm a horrible decision-maker :)
BTW, the main reason I replaced my Lil Mynx is the extension rod for higher ceiling is on the top and not usable at all for anything. When I started aerial invert, caterpillar climb, etc., was frustrated because I couldn't do anything all the way to the top. Lil Mynx powder coated has more grip, but again, if extension rod is needed, it is not usable.
Good luck and let us know what you get :)