I've grown the 'garden huckleberries' offered in many of the gardening catalogs - usually S.melanocerasum. Heavy producers of big, pretty blue-black berries, but even after boiling, leaching, and flavoring with lots of sugar, grape juice & lemon juice(they've got no flavor of their own), the end product still had this odd metallic aftertaste that left me a bit uneasy about consuming any more. Don't think I'd be inclined to eat S.nigrum if there was anything else available.
Supposedly, however, there are some Solanum species - S.burbankii, if I recall correctly, that are edible and tasty, right off the plant.

I grew S. burbanki last year on purpose because of various discussions on garden web. I tried numerous times to eat the berries fresh and thought they were awfull with that strange aftertaste. I can't see anyone making a great tasting pie from the berries. This year I had the plants also because they self seeded and I had them pop up in all sorts of strange places around the yard as well as the area they grew in last year. I did not sample them again.

I haven't grown any of the other garden Huckleberries so have no other type to compair them too but these are supposed to be the best tasting. The plants do produce very heavily.

I have found that birds do love to eat the berries and my Catbirds and Mockingbirds snacked on the berries all season long both years.

The plants of the cultivore do make an attractive background with their umble like display of black berries, but it is the fruit that I dearly love. Possibly it is because I grew up with them, and my mother always blanched them in baking soda water before making pies. They impart a beautiful purple color to pies also. They have a bite, sort of like that in pineapple that makes them stand out, but I don't care for them raw off the bush. My daughter eats the wild ones that are sweeter. The cultivores won't grow well in the Texas heat and stink bug onslaught we have every spring. The flavor (and the bite) the tame ones give to apple pie is wonderful. Try using more apple and less wonderberry, and use the baking soda blanch. I have never noticed any difference in the plants, whether they are called Garden Huckleberry or Burbank Wonderberry. I think they may be a tetraploid of the wild Solanum nigrum.