There are obvious differences coming from the sever year old Mitsu DLP. The Mitsu was loud, had a lot of bleed in and the colors would wash out at different viewing angles. None of that exists with this LED, at least that I've noticed thus far.
And BR at 1080p is absolutely mind bottling.
That said, it isn't a perfect set. There are flashlighting issues but nothing that should bother the average Joe. It is mainly noticeable when switching sources/inputs.
80% complete:
http://i42.tinypic.com/15riafo.jpg