I am using this amplifier in a domestic environment, driving electrostatic loudspeakers. These are a very difficult and atypical load, but Thomann advised me that the amp is stable into any load, and the amplifier is coping with them without any problems.
It is Hi-Fi without the inflated prices.
My only complaints are that the fan is a little noisy and is on most of the time, and that the rack mounting lugs cannot be removed.
In summary, this amplifier is a "fit and forget" device, in a positive sense.