Good review, and I'll second it in that a few months ago I picked up the Center Channel in the same line, (as a back center channel for a 7.1 system) and was stunned at how good it sounded for the price! My front side and center speakers are all Epos, and cost many times what this one does, but it fit in with the rest of the setup perfectly. Though most movies have very little center back info, a few Blu-Rays do (Tron: Legacy, and Inception come to mind) put plenty of music and effects in the rear mix. This speaker brings more than it ever should to the table given it's price and pedigree.
Somebody at Pioneer seems to be trying to actually build some decent speakers for the masses, and I applaud their efforts. Previously to this experience, I wouldn't have even touched one of their products, given how much junk they've churned out over the years. Good work guys!