Deadpool kills the Marvel Universe #1-4... huh guess I DON'T like everything after all >_>
So yeah I thought it was pretty bad. I remember liking the Punisher one many moons ago, and I'm in a Deadpool mood at the moment, but this did nothing for me. Even putting aside the ridiculous premise, it's just not a fun read, and while Punisher wasn't that far off from his own personal in his version, Deadpool as a ruthless evil murderer just didn't work for me.
Cool Taskmaster art in it at least.
Edit: I actually went and read the old Punisher one to see if it held up and it does in my opinion. Again, ridiculous premise aside of course. And the ending to that one is great too.