Pure Music Functionality Question

About a year ago I downloaded the trail version of Pure Music and it just didn't work well for me. It stopped playing, wouldn't go to the next track, wouldn't play an entire playlist, etc. Have all the bugs been worked out?

Regarding the volume control in Pure Music, does it allow separate L/R control and what are the volume change increments? Can the software adequately replace an analog balance control?

Thank you.