I did everything in my power to understand this candy. It's not that I don't understand what the idea behind this candy is. Its simply Reese's famous peanut butter cups filled with Reese's famous Pieces. They took two of their most popular treats and combined them together into a Franken-Candy (TM). What I don't understand is why anybody would think that this idea works as a candy.
The problem is simple, Reese's Pieces are peanut butter with a candy coating. Reese's Peanut Butter Cups are cups filled with the same peanut butter (we could get technical and say that there's more than just peanut butter in most Reese’s peanut butter, but that's for another review). When you put the Pieces inside the cups filled with peanut butter, you lose the pieces and instead you have random candy shells floating in peanut butter. There's nothing special about the filling of the Pieces because it's basically surrounded in its own filling.
What happens with the filling is you get a lot of peanut butter, which is nice. You also get a bunch of crunchy shells floating in the peanut butter, which is not so nice. The shells simply add a gritty texture to the peanut butter cups. It's not a crunchy texture, or anything that pleasant. It feels more like someone dropped some sand in the peanut butter mix. Sure, the texture disappears after a few bites, but if you're looking to eliminate a texture when eating a treat, then maybe you shouldn't have that texture (crunch candy shells) in the first place.
The Pieces don't even ad any kind of aesthetic to the candy either. They're buried in the cups, so you can't see them when you unwrap the candy. When you bite the cup, if you happen to bite into a Piece, then you see mostly filling, and less colourful shell. In other words, it's pretty hard to see the great Reese's Pieces coloured candy shells.
Basically, you have a good idea on paper, but in reality it's just a bunch of gritty peanut butter cups.