The overall look and the finish are pretty good. The only concern about the build quality is that the upper cork joint is too weak (that's not a huge problem: I use plumbing tape for them, while with thread joints you have to use thread to adjust it)
The sound maybe not so strong as I would expect, but after a play-in period it is getting more and more robust, so let's see.
In addition to tricky (very expectedly, though!) C# and Eb of the 1st octave it also needs some challenge to intonate Eb of the 2nd octave and F/F# (in both octaves).
C of the 3rd octave, which is often very tricky, is very reliable with this instrument.
Yes, one need to master the fingers because of the size of the instrument, but it looks, that this Mollenhauer generation of Kynseker Tenors is more convenient (though the wood is probably a bit softer).
A very adequate instrument for its price - especially for consort playing.