4 weeks previous, I picked up the FS51's, the C21 center, and the BS21 rears as part of the $284 Best Buy package. Two weeks ago, I was lucky enough to pick up two pairs of the BS41's when Woot had them for $89/pr. I may eventually move the 21's to my PC and use them there, then use the extra pair of 41's to jump to 7.1 from 5.1 surround.
I spent months researching speakers. I listened to Polk monitor 70's, the low end Infinity's, Klipsch Reference, some Jamo's, and lower end Energy (50's). My initial budget was $1K - $1.2K for the speakers, not including my sub.
I never even had the Pioneers on my radar until I kept seeing threads pop up on another forum with how impressed people were with them. I'd heard of Andrew Jones before, and have a buddy that has a 2.1 Kef setup I really love. Since the Pioneers could be bought local, I picked up the package from Best Buy to do an in-home audition.
I hooked them up to my Pioneer VSX-1121, put the FS51's about 2 feet off to each side of my TV toed in a smidge, ran MCACC, then I tested them with the gamut.
For music I hit them with everything from Tori Amos to Slipknot, Sinatra to Public Enemy, and Miles Davis to Five Finger Death Punch. Yeah, I've got eclectic taste. The low end on them is amazingly tight with great presence. I love that the upper end isn't harsh or fatiguing. I can leave them running for hours while working though the house. The upper mid-range is a little "hollower" than I personally like, but thanks to MCACC I was able to tune it in a little better for what I prefer.
For movies, I'm just flat out impressed. Everything I've thrown at it I've loved.
They're not the most efficient speakers at all, but when you're running all Pioneers and they're all timbre-matched, you just don't notice the little extra bump in power you have to give them to get them at the same output as some other brands.
Best. Money. Ever. Spent.
Oh, and as the owner of a cat and a 4 year old, I love the metal grills. My wife loves the way they look, too.
Now I just need the low-end to round it out. For now, I think I'm just going to go with dual BIC F12's. We're buying a house next year with a basement, and I plan on building a pair of DIY subs, with each box holding dual opposed Dayton DVC 15's running off of a Behringer EP2000 with a MiniDSP handling the crossover & EQ'ing.