I am in the process of doing one of my bathrooms right now and have the paper off and getting ready to use zinser gaurds for primer. I bought a steamer from HD for around 50 bucks and it seemed to work good. Just hold it on a spot for about 20 seconds and then use a plastic putty knife to remove it. Got most of the glue and everything off. I think it was worth the 50 bucks I paid. Like mentioned above you need lots of patience when removing wall paper. Good luck.
Using a wallpaper steamer is the only way to go. Just spent over 35 hours stripping wallpaper from the house I bought this month. I still used the paper tiger thing to score the wallpaper to get the steam in better. Using DIF was very slow in comparison. Moving on to texturing and painting now. The previous owner had painted over all 6 rooms of wallpaper and it looked HORRIBLE! Don't do it regardless of any temptation you have. You'll be so much happier to have stripped the paper and painted then wasting your time painting and then want to start over again.