What every best has:
The main advantage of the Perfect Brownie set seems to be the dividers themselves, which do produce even squares, so this might be an advantage if you have a hard time cutting brownies evenly in a normal pan. All the pieces are dishwasher-safe, so cleanup is easy. Overall, we think that the set isn't timesaver, since it takes more time to coat all the dividers than to cut the brownies by hand.
We found the most illuminating reviews of the Perfect Brownie set at TV stations that provide video clips of their tests. Jeff Jumper's test for KPLC (Lake Charles, La.) is the most enthusiastic. The review at KDFW (Dallas) is also favorable, but the tester at KFVS (Cape Girardeau, Mo.) gives the Perfect Brownie a thumbs-down. A detailed review at AssociatedContent.com also recommends cutting brownies by hand instead, while a sketchy reviewer at StarReviews.com finds no drawbacks at all. At Amazon.com, nearly 60 users are also divided in their ratings.