I have been using Fortinet Fortiproxy from last three years and its the best as a security purpose . It works too fast and capture logs properly . Also very easy to use , you do not need to go into the depth , you have the information directly in front of you.

It provides high performance and scalability which handles the large amount of traffic with resource intensive tasks like HTTPS/SSL decryption . Review collected by and hosted on G2.com.

The thing which I little dislike about Fortiproxy is its high initial cost specially for the small to medium sized business

initially cost to be very high. Review collected by and hosted on G2.com.