Peter White's description of the Salsa sounds like the same Salsa I own. If it is, it is simply the most easily adjusted seat post built, and if you can get it for $34 it would be hard to pass up. I think I paid around $80 for mine. Granted, once it's adjusted, you may never want to adjust it again, but it's a great post.

Before you order, you may want to consider its affect on fit. The Salsa and most others seem to have about 25mm setback. A Thomson Elite can be had with almost zero setback. This is a very significant difference, and this is an opportunity to either improve fit, or totally destroy it.