We just treated ourselves to one of these for Christmas to replace a dying Aiwa micro-system in the dining/kitchen. The size is perfect and sounds great, I tested this alongside many others in John Lewis and this stood out for sound quality and size vs price. It is portable and can be unplugged and carried into other rooms, it fills both dining room and kitchen with sound thta is loud enough to have to shout over and can be heard clearly upstairs at that sort of volume. It isn't going to replace my main audio setup but for what we needed it for is perfect. Mine came with a purpose built carry case and would be great for a picnic or to use in the garden for a bbq (the rechargeable battery lasts for hours).
If you are an audio purist then as mentioned elsewhere you might want a dedicated Bose dock (and you'll pay £250) but i'm glad i got this.
Finally, i have listened to SKA & Reggae, funk soul as well as classical and jazz and all sounded good to me.