OP,
I own a Koetsu Rosewood Signature. A fantastic cartridge, while detailed it is extremely natural and musical. My previous cartridge was a Van den Hull Frog. No comparison between the two. The Koetsu is magically musical, forgiving, and detailed. As opposed to some no holes barred detailed oriented that can make many albums sound bad. This cartridge perfectly fits my values for sound quality. I couldn’t recommend the company more.