I havent, but I'd really like to. I believe this 465 is the same speaker with an atmos driver on top. I'd imagine aside from that it's identical.
Monoprice is launching a THX tower speaker with four 6.5" bass drivers a 2" silk dome midrange and a 1" silk dome tweeter that includes an optional 5.25" upfiring coaxial driver for Atmos.
www.audioholics.com
They do look like very good performers. THX certified and has bass down to 29 hz. I'll bet they'd put a smile on your face, especially for the price.