Dojo loaches are amazing fish.
Back when I had my 75 gallon I once stocked it with 3 goldfish and 4 weather loaches. I think that they are comparable to mice, especially in the face. They are indeed cold water fish, but don't let that think that there is no possibility that this fish is for you.
They aren't really skittish and they love to have other loaches around them. Of course...the only other loach that you can keep with them are Dojos, and I've heard rumors about putting hillstreams with them as well, but don't quote me on that one.
They will indeed eat flakes and trust me...once you put some of the flakes into the take...the INSTANT they hit the water these lil' buggers will come shooting out of their hiding places and scurry about for food.
Oh yeah, I almost forgot to mention...sometimes they enjoy burrowing there bodies into the substrate and only have their heads poking out, but also be careful about them being jumpers. I've never had one jump on me, but that doesn't rule out the possibility of them jumping. So always keep your tank covered, at least partially.
Good luck, and have fun. Remember, this is a hobby, and it never ever has to become work!
Shane