It does what it says, it works! If you're looking to do some packet analysis without having to install anything or buy expensive tools this is your choice. There are plenty of features that can be added if needed but i found most were enough for my needs. We use its speed sniffing capabilities with Ethereal along with other software such as Wireshark so we have both options available when required. I also used it after work hours during off-peak times in order to analyse data from multiple machines simultaneously (which would usually take ages using another tool)Trisul's ability to quickly scan through several IP addresses at once makes our job easier.