How many loops are in Hershey Park's Sooperdooperlooper and what is it like riding it?

I am going to Hershey Park this summer and I am not sure if I want to get on the Sooperdooperlooper. I have never been on a upside down roller coaster so i don't know what it is like. Is the sooperdooperlooper a good one to start off with and how many loops are there?