Fast and easy. Everyone was very friendly. Very streamlined process. I had my medical exactly 7 days before so I was nervous the results might not be there but they were, phew! The first window the man was friendly, took my papers and then I took a seat. The second window was the questioning. This man was definitely a little more stern and professional. I had the same questions as everyone else - How did you meet and what does your partner do for a living etc.
I will say though that they definitely DO read your file. He picked up on something he thought was a date discrepancy which I easily explained and he understood so I was fine and approved on the spot (yay) but I was impressed that he queried something so small which proved he had already reviewed my file. Again, if you are a legitimate couple and you're just open and honest you will be 100% OK!