Glisten Garbage Disposer Cleaner and Freshener, Sink Disposal Odor Eliminator with Foaming Action, Lemon Scent, 4 Packets

How is this better than using Dawn Soap and running the disposer?

It's says 4 come in the pack @ $3.98. Really ? or is each pack $3.98 ?

is this product made by Glisten? the picture of the bag is different. summit brands isn't Glisten right? this is a not a tablet like Glisten's?

What's the difference between these pouches and the plink tablets?