I had the RS65 (had the 3d stereo feature the RS30s lack). Not too bad sounding, but didn't go as loud as I would have liked. Also has this auto-volume thing that's kinda annoying (normalizes/regulates the high/lows of the input signal, kinda like what radio stations do to make the music loud all the time).
Although they sounded good I dumped them after a few months of sporadic use. I rarely leave my PC to walk around listening to tunes (that's why I have PC speakers that sound better). They also lost a signal through walls rather easily.