This head is far superior to the one provided with the sapphire (I can also say the same for the spirit as I have one of these too)..
Flavour is improved as well as improved yield of vapour.
The best bit though is the cleaning (or lack of..)
Verses the standard head, the oil has no where to get stuck except for the plate on the back of the gasket meaning a quick wipe every day with a vipe is all you need...
The standard head takes me about 10 mins to clean the whole unit.
The chamber also stays a lot cleaner and is easier to maintain.
If you have a spirit or a sapphire then buy this now, you won’t regret it and I doubt you will ever go back to the standard head.