Okay, so we are getting ready to make a large (for us) SAN upgrade. We are looking at two VNX 5300s or two Compellent Series 40's. For us, we currently have EMC gear and while we love our CX4 we cannot stand our AX4. The EMC arrays we feel lack some of the most basic performance reporting features even with Navi Analyzer. We also hate the fact that we cannot rebalance storage pools when we add additional disks even though we hear that feature it coming in May. As for the Compellent gear, it has everything you could ever want and need from a reporting aspect. We have some other pros and cons of each but I'm interested to see what others have to say. Those two points above have been the bigest issue for us when it comes to the EMC gear we have no. Both EMC and Dell are giving us deep discounts/buy back on our current EMC gear so we are getting pretty good pricing either way.