I've been using VitalSentinel for a while now, and it saves me a lot of time. The first screen shows the main technical issues across all my projects, so I can quickly get a handle on the situation with each website. I like that it is simple and easy to understand. Checking every website for problems used to take a lot of time, but now it is much faster. The web analytics tool has a variety of filters for more detailed analysis, and it's a useful tool that makes my day-to-day work easier. I value the technical data and web analytics the most.