The sound lacks a little something (too flat?) To be good. I had to fall on a failed model because sometimes pregnant extinguish themselves. By increasing the noise level a few seconds on my pc they re-ignite. I think of a failed energy saving system. Sometimes there is a kind of background noise that blights some listening for sensitive ears. These speakers are extremely sensitive to interference from mobile phones or other electronic stuff.
most + Headphone + Secondary audio input + Button ignition available
Least - Sensitive to interference - Very short cables - Sound quality perfectible parasitic noise - Quality control problem (at least on my model)