When I got my Demeter, I worked with it to make it sound at least in the same ball park as the Walkabout (close as I could get it - good enough).
My go to cab is a Berg CN212 - great sounding cab (IMO/IME) that is rated at 700w. The Demeter definitely gets the most out of the Berg CN212 and stays tight and focused all the way up the volume dial. The Walkabout would just get too wide/unfocused/woolly with the Gain on 11 and the Master at noon (IME, this is about all the WA has for reasonably clean power .. more on the Gain takes it into grind territory, much more on the Master just makes it get flabby .. again, IMO/IME). Of course, the Demeter has 800 (@4ohms) honest watts available where the Walkabout has 300 (@40hms) very honest watts .. so pretty significant difference there.
I also fully understand that I can get way more out of the Walkabout with a bigger cab. I have an LDS 2x15 with Faital 15R400's and a Berg NV610 - both of which kill when combined with the Walkabout .. but I am really not eager to haul the bigger cabs very often .. particularly the 100+ lb, ceramic loaded NV610.
So, today after using the Walkabout again for a few weeks where I had good FOH for bass and pure stage volume is not a big factor, I decided to go back to the Demeter and twist some knobs and see if I could get more of the character and heft that I feel like I get from the Walkabout.
So far, its going ok with some adjustments to the Mids and Bass controls, but it is clearly not going to replicate the Walkabout feel.

Still a great amp though, just maybe not as great as the Walkabout ... and I still wish I could get the Walkabout goodness with more juice/clean headroom.