In most other ARPGs, it is usually a bad idea to stop spinning. But here we have some great synergies that gives us reason to use some other skills while spinning.
The top left Mana node where you get 7 mana per point every 3 sec should be 5 mana per point every 2 seconds in my opinion, to synergize well with Slash node and Void Cleave node where you get rewarded for stopping every 2 seconds. Currently it feels awkward to try to keep your mana.