This 4-shoe dryer (and the 2-shoe dryer from Peet that I bought earlier this year) are so useful that I now can't imagine doing without them.  Wet shoes just take an hour or two to dry, rather than moldering in the closet.

The four-shoer includes both a fan and a timer that are not included with the two-shoe unit, which works solely by convection.

I gave it 4 rather than 5 stars because the fan is somewhat noisy and it takes some space.  Also, for drying just two shoes, it is best to cover the other two vents - a better design would have had a vent to close or a pair of covers.

I got another for a Christmas present for my sister to share the discovery, and wished she already had it after stomping through her cranberry bog.