Looking at purchasing a profiling suite and the ones I know of are AQTime (http://smartbear.com/products/qa-tools/application-performance-profiling/) and Nexus Quality Suite (http://www.nexusdb.com/support/index.php?q=qualitysuite). What good/bad things have people had with these? Are there others that I have missed?

Looking at purchasing a profiling suite and the ones I know of are AQTime (http://smartbear.com/products/qa-tools/application-performance-profiling/) and Nexus Quality Suite (http://www.nexusdb.com/support/index.php?q=qualitysuite). What good/bad things have people had with these? Are there others that I have missed?