What do you like best about the product?

We have been using Barracuda Impersonation for 6 months, and the at-a-glance visibility it gives us into the state of our user's accounts is invaluable. Already it has stopped several account take over attempts, by alerting us when an account was being accessed from outside the country or when rules were being created for an account. The easy to use step-by-step account review has helped us verify nothing malicious has gone out of our user's accounts, and clamp down immediately when an alert goes off.
We were able to set it up in 15 minutes and were up and running checking all our user's connectivity for the past month on the same day. Connecting it to M365 was a breeze, and it uses robust connection APIs. We use this every day.
Barracuda support has always been just a phone call away, and they always have answers to all our communication questions.

What do you dislike about the product?

It would be fantastic if it played a larger role within the M365 ecosystem. Micorosft has a larger ID Threat Protection platform, but it's cumbersome and difficult to get going, and requires advanced licensing.
Barracuda gives us some of that functionality, but additional reporting like device compliance, or additional user Identity metrics would be extremely helpful.

What problems is the product solving and how is that benefiting you?

Visibility into account take over, alerts on suspicious activity, protects against phishing attacks.