never ridden a noseless saddle, but...
for regular saddles, what's heaven for one person is hell for another. it's a "gotta-ride-to-find-out" kind of a proposition.
from reading peoples responses to noseless saddles in the past, i've gathered it's the same; some like them and some don't.
the only saddles i've never heard anyone complain about comfortwise are brooks (or similar) leather saddles, inspite of how they may appear new, out-of-the-box. everyone says pretty much the same thing: unparalleled comfort.
got to take care of them though. hit them with some mink oil or leather treatment on occasion so they don't dry out over the years