Yes. This one is Thomasville. I know some people complain about the taste, but it's very limeish tasting. I mixed some with rosemary simple syrup and some water, and my wife and her aunt didn't throw up The wife said that it tasted a wee bit unripe though.
I also have an 10/3&4 Citrangequat. in a pot, growing large enouhg to transplant next spring
Although edible you won't be smiling when you taste them. In 2000 I bought a 3 gallon with fruit.
When I got home I tasted the fruit and it was the worst tasting citrus I had ever tried, that is until I tried a citrange. I wondered why
any nursery would sell such a tree. Grafted it to satsuma so I could eat the fruit.
It's definitely no satsuma, but I've tasted worse sour citrus such as Kaffir Lime and Yuzu
I basically use it for cooking and drinks.
Unless I luck out, I doubt it will ever get to the ripe stage in 7B.
Those of us below zone 8 have to take what we can get Stuff like Citrangequats and Ichang lemon are our best shots.
If you can get away with Meyer Lemons, I would definitely take that over a citrangequat, but since I'm half a zone away from in ground Meyers..