Sony keep making these things just right. I have a Bose bluetooth speaker also, and think it is a stunning thing, but also think it missed the portability prize by about 2cm all round, and about 200g in weight (also reviewed for comparison). This, however is ergonomically/portably perfect. It is a sleek, handbag sized, metal, slab. It is neatly buttoned on the top, covered in fine mesh grille front and rear, and brushed back steel to the sides, with soft rubber feet, and the sort of heft that indicates "engineering" It has a power outlet for your mobile device (usb) and power inlet for charging hidden away at the rear, along with a handy headphone jack (why you'd need this give its main function i don't know). It is, in short, a really really cool object.
Sound is good. it isn't up to the Bose sound, but then it is cheaper and smaller. Compared to the sound output from a laptop, it is chalk and cheese. Compared to a "proper" hi fi, it loses out, however, for party use, as a speaker for presentations, to augment game or portable music, or as a picnic speaker, I can't imagine why anything more would be needed.
Needless to say connection is effortless both by bluetooth or NFC. A single button press and no entering of key codes, and off you go.
I'd very highly recommend