Dex made me 'grindy', sleepless and ravenous. I only took it for three days with my first chemo cycle then had to take it for an extra couple of days per round after that. It helps with heaps of the chemo side effects but I hated it.
I was dreading Letrazole because I already had shitty joint and muscle pain from chemo, but 2 months on, nothing is getting worse so I will assume I'm tolerating it. Bone density is the main worry for me now, which will have to be monitored I suppose.