For the price you can not expect a top model but I thought for the beginning it should be enough. He runs well, the move curl up with no problems. The seat is comfortable, only you start to sweat easily. The height adjustment works flawlessly. The negative of the stool is the stability. If you sit and just a little too far leans forward, the stool quickly loses its stability and threatens to overturn.
Conclusion: not bad for the money, but rather have the money to invest in the same thing better!