The biggest turnoff to me is the sheer quantity of code (regardless of the fact that it can all be crammed into a single header file). It seems much more diffi

The biggest turnoff to me is the sheer quantity of code (regardless of the fact that it can all be crammed into a single header file). It seems much more difficult to fix a bug in it than in something like UnitTest++. That said, inline setup/teardown and parsing expressions in asserts seem like such natural ideas, I can't believe I haven't run across frameworks doing them before. I guess the shadow of JUnit is extremely long.