I come from using New Relic for our server monitoring, and there are a couple things that I can see that I already love about Sea Lion, their realtime stats, and ad-hoc commands really opens up to allow any kind of monitoring. I would like to see the ability to rename servers instead of using their hostname.. as well as multiple stats on the page at once.. Other than that, this is really awesome!

Considering going on one of their paid tiers