Vox Soundbox mini?

Sure, I know it's not big enough for playing out at even the smallest bar or coffee house, but is it good enough for playing backyard barbecues or playing in a garage band in an acoustic setting? Some settings simply call for an acoustic bass...MTV Unplugged, even though it's not unplugged, for instance.
Roland makes a Micro Cube strictly for bass. Yamaha makes battery-powered amps but I'm not aware of a bass model. Is this on the same level or a notch or two below the Micro Cube?
Will it get the job done...let your acoustic bass be heard?

http://www.voxamps.com/soundboxmini