Mukiele can be considered one of the coin-for-coin best pickups at right-back at the time of this review. Being french, you can use him for multiple hybrids so you can get your favorite players in. Onto the player himself:
Pace - He's fast! Wouldn't consider him a cheetah, but has the pace to get down the flanks, and explosive enough to burst into the offense.
Dribbling - He is NOT a quick dribbler, but being at RB you can definitely juke out your opponent, as Mukiele keeps the ball close to his foot, and can cut through the middle for offensive counters. Think of when Zouma, Matip, or Rudiger did those crazy forward sprints in open play in the Prem.
Shooting - Not a shooter--not going to clinically finish, but has a cannon shot! (First timers, Longshots)
Passing - Will fulfill your passing needs--he can switch the field, lob, 1-2, or drive almost any passes.
Defending/Physical - These two go hand-in-hand, as he will EAT any forwards trying to get behind his flank. His strength is ridiculous, and his strength makes his great defending that much easier.
With engine, he is super reliable for me-- I can drop back anad defend, and I can burst forward and cross the ball in if needed. He is a true RB card. He is/was cheap because of Leipzig's loss to PSG, but he is still (IMO) a top 5 back in his position as of now! IMO, his price will continue to rise until better options come out.
Standing and Slide Tackles, Interceptions
Driven Passes and Crosses; Delivers lobs perfectly
He's not a close finisher
Wouldn't try a Kazooie-highlight run with him, he will occasionally do a heavy touch
Stamina could be suspect later in the game depending how much you're using him