from the few I have seen and the even fewer I actually worked on I always thought they were very nice. I know this was not the real intent of this forum, but since we seem to be discussing bikes from the early '90s back I would say yes there is such a thing. I may be wrong but I do believe Mr Serrota was one of the fist builders to start doing things like curving the chainstays to make them stiffer as dropout spacing got wider. he also used a seattube that got larger at the BB somewhat like a Bianchi Superset 2 frame.