I have used the Nano 300 for several months now, although the last couple I haven't gotten out there much. I am quite pleased with it. Yes, the bass is more pronounced. The Compacts are a little easier and quicker to set up, but the Nano is quick enough.
I use two of them. That's redundant for a lot of jobs, but I enjoy the extra power when needed and I always have a backup in place should one fail.
The Compact has a bit larger coverage area before the sound drops off, maybe, but not as much as I expected. Hasn't been a problem.
Frankieve sells them for about half the price of a Compact.