GTS2M is a popular cube. We have a few and they hold up well to a lot of solves. You might buy some lubricant for the cube as well.I'm picking up speedcubing after several years. Last I remember, I used to be sub-16 with a ZhanChi using Roux (now dropped to sub-30 T_T).
I'm not up to speed on latest cubes and stuffs. But it seems like the Magnetic cubes are the popular choice these days. Having not tried one before and most reviews online talking about how hard M moves are, I'm not sure which one to get.
Seems like the prices have gone up. I can spend up to $35 for 3x3x3.
What are my choices (given that I use Roux)? Should I get a cheap magnetic one to try it out before spending more on a magnetic cube?