Of the two I had the brightness was too uncontrollable. Obviously it came on full wack when they arrived which is just unbearable, but with tweaking I found it impossible to retain a level of vibrant colours whilst keeping the brightness low. Turning the brightness down even a bit would have an awful effect in general, quite undesirable. Add to that typical backlight bleeding on the models and its all quite disappointing.
To summarise - they messed with my eyes something cronic.