There are 2 main methods of connection for the handy, bluetooth and wifi
Each have pros and cons
(Off the top of my head, can search yourself)
It is like the completeness of the script vs responsiveness
Personally atm, i am using the following which has been perfect (bluetooth)
Syncopathy
The only thing i would say might be a flaw is there is a bit of learning to do and playlist take a bit to setup, but i want the responsiveness of my handy (pause to pause handy immediately instead of risking the command not sending) and have really enjoyed the player so far