I just remodeled my guest bath and I didn't want to mount a toilet paper holder to the new  vanity. I use one of these holders in the master bath and like having the extra rolls right there when you run out. This is especially nice for a guest bath when you don't want company rummaging through your cabinets looking for more tissue!

Pros: Nice finish; holds 3 extra rolls; reasonable price
Cons: lightweight, can topple easily