I've got a Paper Tiger. I like it. It scores the paper without penetrating the drywall paper. I ran this over the wallpaper while it was dry, then I soaked the walls with DIF wallpaper stripper from a garden sprayer. From there I used a disposable 6 inch plastic taping knife. The wallpaper was easy to peel off and the taping knife was only necessary when I was starting a section. There were a few places where the glue left a mess, I washed those spots with Dif and a rag. I was able to paint the same day.
Paper Tiger at Amazon.com
DIF wallpaper stripper is available at most home centers.
The steamers ARE worth a look too! Some of the adhesives work differently. Steam will work with heat to release the adhesive. I still believe that a Paper Tiger is useful with steam. You can get the stripping solution into the adhesive more efficiently with the paper scored.
Tom in KY, stripper for hire. Heh-hee!