Congrats!
Shivas are incredible. They have some of the best clean tones and reverbs you can find in a head, and the drive channel is inspiring. It's hard to describe but it sounds like a simple circuit that manages to generate a ton of harmonic richness, but it never gets bogged down or muddied up by all its gain, even though it doesn't really sound filtered. I've never heard an amp that sounds both as raw and as smooth at the same time as a Shiva.