Is Steinberg's Wavelab worth buying/spending time to know?

Recording and mixing = Protools
Mastering and certain other workflows = Wavelab

I shied away from Wavelab for years, as it is not the same paradigm as most DAWs, and seemed hard to work out the best way to use it.
However, I now absolutely love it as my mastering app of choice. So powerful with lots of deep and customisable features.
I have to thank Justin P for his fabulous videos and generous sharing of presets and work flows.