It was all pretty much the same as everybody else has described previously, Get through security, see the receptionist, sit in the hall and wait to be called...
The first window I went to they just took my docs, really nice helpful guy.
The second window a very dead pan gentleman interviewed me, to be honest I cant even remember the questions he asked as I was so nervous! but when he told me i was approved I wanted to jump through the glass and hug him!!
All in i think I got through in about two hours, including queuing up outside the embassy so not too painful at all!