Just a quick update for you Nexus18 if your interested.
I exchanged my monitor for another one as the backlight bleed was a bit excessive. It was in all corners. The new one is better by far with only a bit in the top right corner and it doesn't distract me while the other corners are clear of it.
I have now adjusted to your recommended brightness settings. I use 20 in the day and 10 at night which is perfect for my eyes.
I bought a monitor arm for it so I now have movement without restriction.
I am very happy with this monitor. Ultrawide has the wow factor. I am also very surprised by the overall quality of this display. I have only just took the plastic off after 7 days and it's beautiful. The black level is very good even compared the my Samsung va monitor and so are the colors. I am going to keep this for a while unless a 29 inch 144Hz comes out that doesn't have the drawbacks the current ones do such as low brightness and low ppi etc.....
I sold my Benq 2730Z a few days ago after confirming that I wasn't going to regret it.
Thank you very much Nexus18. You have been a great help.