The construction went quite quickly and quite simple vonstatten. Within half an hour the bike was "ready to depart" in the living room. Describes vulnerabilities as already isolated from others I could not identify. No cable chafed at the wheel and the stability was fine.
The balance mass of 7kg for professionals certainly too little, but enough for normal use. The wheel is pretty quiet - even the sound of my sweatpants was louder than the wheel itself;)
The computer provides all the necessary information and the display is relatively easy to read. However, the operation is a little getting used to, since not necessarily self-explanatory. Even that awkward long the reset button must be pressed for a fat measurement in order to reach through a real reset in the main menu I do not really practicable.
Really disturbing is that the date and time must be reset if the device is disconnected from the grid (which is recommended in the manual).
Still, I find the price / performance ratio completely okay. That's why a strong buy recommendation for people who make no claim to pro ergometer!