Imo the finish moves are fantastic!! Makes the combat really satisfying & vicious & nothing more rewarding when my khajiit sneaks up behind someone and then a nice finish move kicks in awesome!!
...Finishing moves aren't from Fallout. The slow mo finishing camera was just a regular attack with normal slow mo effects. Nothing like what is in Skyrim.
It seems 50/50 on how you guys feel about the finishing moves. It would be nice if a future patch to turn them on and off was released so everyone could be pleased. For the most part I'm enjoying the game very much.