Not sure about the SOHO ... but Watchguard's firebox is wonderful. I've got one in production at work right now and it went in smoothly, quickly, and has not given ANY problems whatsoever. It replaced a POS VelociRaptor that was sent maybe DOA, maybe just crap, we're not sure.
Anyway - my watchguard experience has been great, but then I've not used the SOHO version.
~N~
