When I went to London last year, I was advised by my sister to try Cinnabons, but I wasn't very into it, as I had already tried some cinnamon rolls and I hadn't like it at all.
Well, I tried it in Piccadilly Circus - they were offering outside their store - and I felt like I was eating a piece of heaven: very moist, sweet, with no raisins and a very very good taste of vanilla.
I went there another two or three times before I left, but I could never eat anything like that again.