I beta tested SOHO and have been using SB for a while in a limited capacity.

SOHO is clearly beta, just look at their support forums. Chronos has spread themselves way to thin, and thus SOHO is actually 4 apps that are also way too thin. SB could have easily been enhanced to do what SOHO is trying to do, with a lot less headache. I'm afraid Chronos is simply trying to make one app (that could have been simple) into 4 apps to make us think we are getting more, forgetting the Mac more-is-less approach that works so well.

SOHO Notes is SB with .Mac sync (vs .Mac backup) and group abilities. In other words, they are charging current users $25 to upgrade from SB3 to SB4, and then trying to get them to spend more again to upgrade to SOHO Notes. Leaves a bad taste in my mouth. Add to that, they disappeared (shutdown) for 10 days after releasing SOHO (which was/is a mess) to attend MacWorld, leaving users with no support resources. And the only free tech support is via their forum (which is OK, but you should know that going in), but for those 10 days, there was no tech support; they couldn't even manage to free one person to respond to the forum. (Yes, I'm not very happy with Chronos these days).

There is a Macintosh pims group:
where all kinds of product are discussed (warning, I'm much more harsh re Chronos there):
http://groups.google.com/group/macintosh_pims?lnk=li

Process2 is a product I'm looking at right now, comparing it to SB, and worth a look:
http://www.jumsoft.com/process/

I have no interest in any of these products, other than as a user (and user advocate).

I hope this helps a little. Reply here if there is more info desired; I've subscribed to the thread.