I have one - the only model available in the UK is the OC model.
There have been no issues so far.
The 100% setting is quite noisy [in my opinion] - but through any game or application putting the card to load, the card will never ramp up that high in the fan speed.
So, all in all, I have been very happy so far.
Plus, MSI's 'Live Update 5' software will fetch new BIOS updates for you card (if that is any interest to you).