I love Carbonite. I've used it for several years and not had any issues at all (of course, it takes a long time to do the first backup, but after that it is just seconds as it runs in the background and updates everything you do quite quickly). And, a nice bonus with Carbonite is that you can access your files from ANYWHERE - even your phone. So, if you are away from home and need that file, you don't have to use GoToMyPC or LogMeIn unless you need to also use software that is on your computer.
I think the price is quite reasonable for the service.