Lightbulb speakers...any good?

Have these been talked about here. not these specifically, but in general. The concept of them. i have a recess can light that is kinda out of place and not needed for a light so i thought about getting one of the light bulb bluetooth speaker. Do they put out enough sound to be worth it. Should i try a cheap one first. will they work if i put them in a can as opposed to an open socket like a lamp or mounted fixture?
thanks for the help.