I've not even had my 905 calibrated. I just found some settings on AV Forums and then tweaked them a bit to my liking. There are good LCDs to be had, and you have to make an effort to understand how they work to get the best out of them - something most of the shops out there seem not to understand.
I even saw the 905 criticised in a review for having so many features and options that it was too daunting for the average person.
It's really worth being a little patient and doing the research. If you're going to spend a lot of money on a TV and you want to enjoy it for a few years, you want to make sure you get something good that you will be happy with. And don't run any software that's designed to find panel faults and other problems that can't be unseen. If all the pixels work and you don't have backlight bleed, be happy and enjoy it. Don't go looking for corner case problems that will drive you nuts.
I can genuinely say I still enjoy my 905 after a year of ownership, and I find myself watching things just because it looks so damn good. It's a real pleasure every time I turn it on, and that's how it should be.