The Couf is probably alright. I havent played any Couf baris, but I had a student with a pretty decent Couf Superba alto and one time on the gig, my soprano got dinged pretty bad, and Grover Washington was playing the next set, and he let me use his Couf Superba soprano and it was a really fine instrument. As for Amatis, also from personal experience, one fateful session, I had to use an Amati bari for lack of a better horn, and I had to make horrid faces and oral contortions to get the upper register that extra quarter step down to the land of the in tune, so, avoid Amati baris like a plague. Really? how much are you trying to spend?