Saves time and effort researching that could spent elsewhere.

A very good app for those of us who shop Amazon an awful lot. It helps whittle down choices, that usually take hours for you to accrue and understand on your own. It is a godsend for those of us with OCD or anything like ADHD or something like that. My ONLY constructive criticism is that sometimes when you arrive to a newly matriculated page in Amazon it will lose the tags for some reason, and forces you to do a reload/refresh of that page (no big deal, BUT STILL an issue). Also, they need to add some more subcategories to items like Bluetooth speakers and such, but I imagine those are coming soon. Overall a 4.1 on the ratings!