I have a mahogony Gallatin and I love it. It has a very pure warm sound and is very well balanced with nice crisp highs and lows. It also records extremely well. It doesn't have the chop or woody tone of a maple ff style instrument and I'd say it has average volume and cut. The few times that I've brought it to jams, it's always been the one that gets compliments about the way it sounds.
It's a 'plain jane' and not the best looking mando around and should have binding and a nicer peghead for the price (the neck is bound), so if that's not a priority and a warm tone is what you're after, the Gallatin's a good mando
BTW - there a 'D' holed Gallatin with modified X bracing on ebay right now. The X bracing might give it a woodier tone
And now for today's weather....sunny, with a chance of legs
"Give me six hours to chop down a tree and I will spend the first four sharpening the axe." - Abraham Lincoln