A lot of people say that the Moyu Tanglong is too slow, but I feel that the speed is fine, unless you really do need 180 degree turns with one flick. The turning is very quiet and smooth, but doing algorithms quickly will cause the cube to give a satisfying little crunch. The corner cutting is easily 45, and reverse is almost 2/3 of a cubie. The tensions are perfect out of the box, providing controllable but fast turns. Popping is never a problem, and corner twisting isn't frequent.
About my personal experience with the cube: Okay, so I have a sub-35 average, and my PBs with this cube currently are as followed: single: 16.95 seconds, Ao5: 23.86 seconds, Ao12: 23.98 seconds. My setup isn't the best. I use a mixture of Vaseline and floor wax as my lube, but it works fine.
Overall, I recommend the Moyu Tanglong to anyone looking for a new experience in cubing. If you like a smooth or crunchy solving experience, buy this. I also would show this to rough turners, because the speed can make up for overshooting.