Looks good Vin. Is that your daily driver? How do you like Gnome shell?
Here's mine. Same as it always is...
Last things first... Your desktop looks great, as usual!
Yes, I run dev releases, raw trunk builds, et cetera, on my production box, as much as possible.
When it breaks, I fallback to Ubu 10.10 (orphaned) temporarily, or crank up a portable -- laptop, netbook, USB stick (all currently under Peppermint 4).
And, I like GS Staging just fine. GS used to be a kludge (pre-3.8) but 3.9 Staging just keeps getting better n' better.
Tim is doing a good job of keeping it updated...