I think the stance dancing suffers from a couple issues:
1) MnM's basic gameplay is not fast-paced and we don't have the responsiveness of an action game for stance dancing to feel good
2) The stances themselves lack any sort of significant VFX or SFX which would give them some sort of punch. My entire awareness of what stance I'm in comes from staring at the aura bar and watching the cooldown timer.
Until both of these things are corrected, I'm not sure stance dancing will feel good. I do like that I have a decision-making process to work through in real time about which stance I want to be in for the next time Conduit is up and how that will affect my DPS and usage of other abilities that are coming off cooldown.
Another significant concern for me is that SPB has entered WoW rotation territory and with the increased regen there is basically no downtime. I'm now doing my WoW-rotation for 3-4 hours straight while I grind. It's pretty exhausting.