Raised some of the black tomatoes in 2011 (bad drought year) and they did great. Not much to look at as far as conformity, but gawd they were good--and huge! You won't be disappointed.
My brother in law has a little 20 X 30 ft greenhouse and starts enough tomato plants for 1/2 the county--always a different bunch of varieties each year. (that's where I got the black tomatos.) Last year included some German heirlooms that were really good as well as some French or Italian cherry type tomatoes. Lots of them, I have never heard of, but they all have their own distinctive taste. We canned lots of them and they have kept good--almost out now tho. I'll never grow any more BB or early girl types again.