Weekend Learning: Using ASH Analytics in EM12c

Have you used Enterprise Manager 12c yet to drill into ASH analytic data?  If you have not had the chance, I would visit the page Kellyn Pot'vin shared via Twitter tonight where she uses EM12c to identify a negative trend and then dive into the ASH data to figure out what is going on!  This was a great article where she gives us the entire "train of thought" plus screenshots for every event so we can duplicate her efforts when we have our own problems!