I had a buddy make a REALLY fruity ESB with 1968 and I believe he fermented a little warmer. He doesn't have temp control so we're probably looking somewhere in the 70-75 range.
It was probably out of style but really tasty. Some people would be turned off by how fruity it was. A lot of strawberry flavors, with a dash of banana and mango.
I use 1968 in most of my ales, but I'm usually fermenting around 65-68. My beers usually turn out more bready and malty. 1968 is very intense.