General consensus about upgrading from 5.x to 6.x?

[Thomas T. Veldhouse]

I run a very small home office network and domain off of my DSL.  
Currently, I have a FreeBSD 5.4p8 firewall (pf) running.  I am really 
not having any issues, but sometimes the machines gets a bit stodgy for 
no solid reason [load shouldn't be that high].  I have considered the 
jump to 6.0, but I have held back because of the .0 stigma surrounding 
FreeBSD releases.  What do people think in this case?  I have heard that 
6.0 is considered much more stable than later 5.x releases; is this true 
[in context of my usage patterns]?

 How well does the new ULE scheduler (presumably no preemption) play on 
servers in 6.0?

Thanks in advance,

Tom Veldhouse