I have one. It is a good set. PQ is great. Very flexible inputs except that it lacks DVI and is said to be non-upgradeable. Appears based on the 433CMX. So, the questions is...Why not get a 433CMX, which is upgradebale? If you don't need the speakers or stand, that would be the way to go. 433CMX can be found for about $900 less than Costco price. You can get a stand for $30-200. Costco advantage - if you aren't happy, you can return it.
Bill