CentOS - Jun 2009 - OT: need advice on drive controller

I am thinking of getting an Areca ARC-1222 connected to 6 sata drives
in raid 10.
http://www.areca.com.tw/products/pcietosas01.htm
I have read good things about the ARC-1220 (iop333) sata only. The
ARC-1222 (iop348) is the newer generation (sata or sas).

Does anyone have advice/experience on this drive controller?

-- 
Robert Arkiletian