I have done a few over the past few years.  I have only ever used a hairdryer (medium setting) and peel back very very very slow.  A lot of glue residue will remain and you can safely bank on about 5hrs or more to remove the glue.  To remove the glue I use both 'goo remover' on a rag and shellite.

There is a very high likelyhood of removing paint.  Just be aware and take this into consideration before starting.