Unfortunately, the display has in me a little wobbles, must from time to time pull the cord and it then goes again. However, for the price I expect no perfect workmanship on the part of the device. Most of the time I use it anyway without display.
To function, I can say it is doing what it should! You can paddle it and make good cardio. I can not connect a number of reviews that say it would be too easy (even at high levels). If you make a well-balanced training (ie other exercises and not only dull row), then the higher levels are quite right, I do not want to be yes Hulk (but stay fit!).
However, after about 6 months use I have problems with the last transition. If I, the device is on 8 Unlock very loud and it sounds unhealthy! Personally, I do not mind so much, because I simply use the stage 7.
For the money, definitely worth a recommendation. Who just wants to do sports without spending 600 for a device can rely on this handy device!
Star deduction for the wobbles in the electronics and after about 6Monaten problems with step 8. I suspect, however, that it is just bad luck with me