I have a Mirena. I love it but funnily enough my second one has been totally different to my first. With my first I got a bleed when it was put in and then no period until it was out. With this one I still get a period every month but it is quite light and goes for longer than my old periods used to.
I really like the not having to remember a pill and not having to use a condom (DH is so annoying about condoms) aspect of it.