This is the second one of these I've purchased, so what else do I need to say? I bought this one for my son because he's starting to learn 5x5, and he always wanted to use mine. I also have an MGC 5x5, which is fine, but for whatever reason, I'm about 5-15 seconds faster with the MoYu (that's for someone who averages in the low 3 minute range for 5x5, but every second counts). Basically it's like everyone says, MoYu cubes are known for stability and MGC can be a bit faster, but the MGC doesn't seem to be faster for me for whatever reason. I've read reviews that say the inner magnets on the MoYu are a little too strong compared to the outer ones, which is a valid point, but once I got this broken in, I really liked it. I've logged about 1,500 solves on it so far and haven't had a problem (no lock-ups, pops, etc.). I'm giving this 4 stars just because I imagine that it's possible a better, say somewhat smoother, 5x5 could be out there, but I'm personally completely satisfied with this one. For the current $25.99 sale price, this can't be beat.