[alq]

A no-hassle, real-time display of custom metrics for developers: 1 command to run and you can watch your app in action, as long as you instrument it with a statsd client (pretty much standard these days).

So, no logs to parse to get any app metric, everything already graphed for you in real-time, quasi-nil setup.

We chose statsd because it means that you don't have to change your code to get it to production. You can then rely on pup for display (but no historical data), or on your internal tool chain (e.g. graphite et al.) or give our service (http://www.datadoghq.com) a try if you don't want to set your own stuff up.