I like him a lot, but not enough that I would be sad if they replaced him.
My ideal MCU Deadpool would 1) actually be born on Earth-199999 2) be young enough to team up with Spider-Man and throw double entendres at him without ending up on a watchlist.
And yes, I'm already aware that everyone on here disagrees with me and would love nothing more than for Reynolds' Deadpool to unexplicably show up in an MCU movie and say stuff like "Gee, I guess I work for Disney now, ROFLMAO! Is that the Human Torch, LOL!!!!", so please leave me alone.