This document discusses the System Analysis & Performance Instrument tool from TeemStone Corp. It outlines some of the key benefits of their onTune product over competitors like IBM Tivoli, HP OpenView, and BMC Patrol. Specifically, it notes that onTune allows for real-time monitoring at the second level, collects abundant performance data, and has intuitive functions for problem and performance analysis. Case studies and customer testimonials are also provided showing how onTune helped customers identify issues that other tools could not detect.