I've never tried it. I had tab clear once out of a swimming pool vending machine for 30p. Didn't like it.
I liked Tab because: (1) my favorite aunt drank it when we would hang out, (2) pink is awesome and a favorite color
Now, I don't know if the formula changed since the 80's, but I wonder if I would still like it (I greatly prefer Diet Coke over Diet Pepsi).