Which particular one?
Fifi's in a KK Ultra french link eggbutt, and she seems to like it. It's a pretty substantial piece of metal (although that's not the reason we got it
), but does feel well made with no rough edges or anything else.
Our criteria was a french link with a peanut lozenge rather than a flat link with eggbutt cheeks made of a nickel free alloy, preferably with a large diameter to the mouth piece. There aren't too many on the market