I work with a singer who uses this set up for our duo gigs and have always been impressed with the sound quality and volume that he gets out of it. I recently had to provide music, and MC for my mom's birthday party, and needed a PA system, so I figured that I would give this a shot, and was further impressed at how it handled a relatively large venue (room with about 80-100 people) with the just the two speakers it came with and my Roland KC 300 for back up. I had people asking me what I was using, and they were amazed that it filled up the space as well as it did. I even had a couple of people ask if I could turn down. Talk about someone who was proud of his equipment.
Bottom line if you are concerned about portability, saving space, and still having enough power to handle small to slightly large spaces, this is a wonderful option to consider.
The next thing that I'm going to try it out for; use as monitors for my trio on our next live gig, and I'm sure that it will be more than up to that task.