Good news, this IS the correct version for the Note8 and direct from Samsung UK. As for 'how is it' - If you've any plans for the next few months, cancel them! (Although the hardest part is trying to get it back off the rest of the family that thought it was ***** when the box arrived!)
I can confirm it's the correct one for the Note 8 and it fits perfectly.
If you owned a previous version, the good news is I found an improvement on this newer model. The gap for your nose is slightly wider. So if like me, you found your nose uncomfortably pinched then this will be a welcome improvement.
It's missing the volume button too but this was mainly redundant now the included controller has one. Otherwise it's pretty much identical.
I wish they added more ventilation though as occasional fogging still occurs.