I rarely if ever hear rave reviews of Sony speakers, but I have not listened so I shouldn't really say anything. The FS-52, though, is certainly very nice sounding and a rather astonishing deal for the sound quality. Matching the surrounds to the fronts is a 'nice to have', not nearly as necessary as matching the front three to each other. Perhaps a 'very nice to have'. For the cost of the bookshelf Pioneers as surrounds it is often not too much of a stretch to fill out the system, although of course YMMV.