The effort was well worth it, as the hat turned out pretty well! I do wish I'd gone up another needle size, though, because I forgot what a tight knitter I become when stranded colorwork enters the mix. Thankfully, it grew with blocking and fits me perfectly!
For anyone struggling with the crown decreases, I did leave some notes here on my Ravelry pattern page which detail how I approached the decreases to incorporate the design motif and transition into using a single color for the rest of the crown.
The yarn was a dream to work with: mini skein kits of lovely hand-dyed merino from Wonderland Yarns/Frabjous Fibers. I've just wound the extra yarn into mini skeins to add to my grab bags which are available here on Etsy, if you are interested!