I don't access the files from a Mac very much, but it shows up as a server on the network. Once the connection is made (GO>Connect to server), and the password provided (it's optional to password the folders on the network drive), it persists so it's easy to use. It shows up in "My Network Places" on my PC desktop with similar persistence.
As it's a drive on the network, it works like a server. My iTunes music is on it, and (except for the time the drive takes to spin up when it hasn't been accessed for a while) it is quick and easy.