Yes, last year my daughter took the second stage exam, but only at Nonsuch. In 2015 there were two separate exams, one at Nonsuch and one at Wallington. We didn't do the Wallington one as we weren't interested in that school. This year, the two schools have joined forces and are offering just one exam for both schools. In a way, this is better for them as there is less marking and apparently if you pass it, you can put either school first on your CAF form. Unfortunately, it also means you only have one chance to pass and get a good result for a second stage exam
My daughter passed and got offered a place at Nonsuch. I remember her telling me when she came out, that she'd had to write an essay/short story.
Hope that helps