Well I installed it just a few hours and I am glad to tell it is working just perfect, a lot better in performance that version 2.0b9.
I am running it in a WinXP pro server poweredge 350 w/256K ECC RAM and a P3 850Mhz engine.
Only running dude server, nothing else, winblows optimized; less graphics, not needed process disabled, snmp enabled on the box, SP2, and all not needed windows components removed.
On version b9 the cpu used to go 100% most of the time, now its around 10-15% !!! and RAM was around 900Megs (physical and virtual) now it is under 120 !!! well done mikrotik guys !!!.
PS. Monitoring around 100 devices with a lot of services and a lot of SNMP info.