Admittedly I was not crazy about the overall Boston sound.
It could have been any number of things including me not getting the setup right. I know quite a few people very happy with them, so I suspect something was not up to par somewhere. They in no way have the big sound that my Martin Logan's have... nor are they nearly as big... nor are they nearly as expensive.
The VRX surrounds satisfied me fine with the ML's in the front, but I happened to run across a fairly good deal on some ML surrounds so I went ahead and snagged them so that I could have a completely matched system.