i am quite happy with ps 3 media server. i am using v1.20.409 BETA on a mac.
while this version works very well on my son's ps3 it is not too reliable on my LINN DS audio renderer. I often have to rescann the library and some controlpoints (like the official LINN Kinsky) just don't "see" the ps3 media server.
i'd love to see better LINN DS support - though i am aware that it mainly is a PS3 server