Of particular note are the numerous and long enough connection options, which are not really to be expected in case of power devices in this price range. With average load only a heat development is determine from cold to lukewarm.
A small but nevertheless contain important drawback I would like to mention yet:
A starting current limitation is apparently not available or not effective. This does not have to, but may at power for a fraction of a second to a very high current load and thus to failure of the appropriate circuit fuse (not RCD) lead, esp. In the old circuit breakers with tripping characteristic H.
Here you can either (unless technically possible) help or the use of a start or limiting means (there is a plug device) the replacement of the fuse. Both causes additional costs, which should be considered.
However, this disadvantage seems to have many or all network devices in this price range and above a certain capacity.
In summary, I recommend this device, however, and would buy it again at any time.