The sound quality is very good for a speaker this size. The highs are obviously slightly dominant, but the lows can be heard well enough, so that listening to any kind of music through the B205D can be pleasant.
The B205D can be used in a variety of situations thanks to its small size and incredible power. Still I've found that it works best as a personal monitor for a band member outside of normal stage monitor range. Obviously in a perfect situation all band members should be positioned so that they all hear themselves well enough through the main monitors, but sometimes different kinds of venues have some restrictions. For a very small band of one to three people the B205D might work alone as a monitor system.
The B205D needs to be mounted on a microphone stand to work perfectly. The power cable input is placed in the back so that the speaker can't be placed sitting alone on any surface, unless the back of the speaker is somehow lifted from the surface. The design seems somewhat clumsy.
The speaker has a variety of inputs and outputs front and back, so it's made to work in a lot of different situations. The speaker also has volume knobs for all the different inputs, and its own equalizer with high, mid and low knobs. All these things are very handy, and give the user ease of access and a good control over everything.
Due to its size, its power output and many inputs the B205D can be used as an ad hoc PA system. It basically fits in a small bag so carrying it around somewhere isn't a problem.