Since the OP ask about derringers... Here's my personal experience not what I've heard at a LGS or about a friend of a friend...
I purchased an American Derringer Model 1 in .45LC/.410 with 3 inch barrels in 1990. It's been a fun gun that fills a unique place in my small collection.
I've got Detective Specials, a couple of J Frames, and a Walther - not going to get into on ammo capacity or what is a better SD firearm. Just the derringer!
Mine has been on numerous trips with me in the woods. Loaded with field shot at close range, it makes short work of snakes. It is also a fairly close range gun as far as accuracy and within its limitations is effective.
With .45 LC out to about 10 yards its accurate enough to do the job. The .45 LC with Smokeless Powder is a handful. I have .45 LCs loaded with black powder that are very pleasant to shoot and are more fun than the 4th of July on the range. Want to start a conversation on a range - touch off one of those. The flame, smoke, and deep throated boom will bring smiles up and down the line.
The .000 Buck in .2.5 inch shells is a comfortable round in this gun. Out to about 7 yards it too is effective.
I've been very pleased with my American Derringer - and yes those are pre-ban elephant ivory grips on it.
I've never fired a Bond Arms - they have a great rep with the SASS shooters. One thing about the Bond that is an outstanding feature is the ability to buy additional caliber barrels and interchange them.