Installed the Whiteline links today and I love them. Here are some pics (which link to the full size images - sorry for crap cell phone quality):
I only have snows on at this point, so it's hard to make a completely fair comparison on them, but based on the 50 or so miles I put on them this morning they feel every bit as solid as the BSH links - only with no noise. The rear end is now dead silent, and the crisp predictable initial turn-in feel that came along with the BSH links doesn't seem to have gone away to any noticeable extent.
The install was a breeze. Just an open end wrench, box end wrench, and torque wrench needed to get them down. Since they didn't use shiny plated metal screws, once they were torqued down sufficiently only one wrench was needed to complete the final torque down (unlike the BSH setup which requires a hex wrench for any tightening. I used copious amounts of loctite red to make sure that they don't back themselves off, and found that they were still at spec 50 miles later. We'll see how they go, but I definitely recommend them for anyone looking for an upgrade without the noise.
--Matt