Easy to use, no sensitivity issues, lower waste packaging
These strips were easy to use and gave me no issues with tooth sensitivity (which I do get with the Crest Whitestrips product).  I liked that they have less wasteful packaging and the much lower price.  They stayed on well and had no bad taste or anything.  I did not find them to be as fast or effective as the Crest Whitestrips product, however.  Usually I use about 3 days worth of that basic product every year or so and achieve significant whitening/brightening.  For this product, it took over 10 days worth before I could see about the same level of whitening for my teeth.
Rating: 4 stars