I like that it's easy to use, even if you're not exactly computer savvy - all tools are presented in small icons so its very intuitive! It is also quick compared with other programs as well (it can scan an email account within 30 seconds).
There isn't much i dislike about this program atm but nothing specific either really; just wish they would release more features or maybe add some additional fields/tools into their product line-up? Great tool when used correctly!! We have been able recover emails from previous years which has enabled us access them again without having had any prior knowledge we were missing out messages before.