FWIW, the official release version of Postfix is still Postfix Beta 19991231 Patchlevel 13. The newer versions are still classed by Wietse Venema as "experimental". Although WV says they are production quality, I doubt SuSE will ship a program still officially called 'experimental'. I run a recent "experimental" version without difficulty, however. It compiles extremely quickly. I can't see what problem you might have using it.
You obviously don't read the changelog entries for the experimental versions =) Lots of NASTY bugs have been squished (some fixes backported to 19991231 which is why we are at pl13). 19991231 makes an excellent Sendmail replacement, the snapshots support much more functionality but also come with issues. For perspective I use a snapshot on my main mail server but my secondary and another site run 19991231 (so if I blow my main one up on an upgrade or some bug pops out I'm not up the creek for 24 hours =). I wouldn't quite yet reccomend snapshots for production use yet unless you MUST have some functionality they provide that 19991231 doesn't (it's more an admin issue then technical). God I must be getting old, I'm advocating the use of "stable" software ;).
Corvin
-Kurt