I've had both of my shots, and no problems other than the usual tenderness in the arm where the shot went in. Great service - in and out again in about 10mins or less. It might be worthwhile taking a book, as there is a 20min wait time before you can leave. And it is amazing who you meet there - a lot of my old work mates (I worked in the hospital for many years....) and people from around the town that I know.