First of all, the word "theorbo" is very inapropriate to use in the description of the instrument. The Theorbo is a renaissance instrument with longer bass neck, single-string courses, and a lower tuning.
Archlute is an early baroque instrument developed as a combination between the renaissance lute and the theorbo for the sake of having the high range and the double-string courses of the lute but also the bass strings of the theorbo.
Overall, the instrument is nice but I was quite disappointed about how the nuts are made. High strings kept breaking and when you buy high quality gut strings which are quite expensive, it becomes a problem. I had to refile and sand the string slots myself and I find this unacceptable for an instrument in such a price range.
The peg box for the bass strings is too small and the pegs are hard to rotate, also it's very narrow and some strings are extremely difficult to tie to the pegs. In addition, the entire peg box is designed in such a way that it has a big vertical offset from the string natural direction so the nut there has to redirect some of the strings by a 45º to the right side which causes unnecessary friction to the top edge of the peg box and the lower strings to pop out of the slot very easily.
Nevertheless, if we ingore that, the archlute sounds quite nice and it's comfortable to play once you fix the nuts, set it all up properly and put gut strings in there. Just an important notice that this instrument should be tuned to A = 415 Hz (baroque tuning) because on such a scale length (67 cm on the short strings) it's impossible to tune the 1st string to g according to A = 440 Hz.
