It's only been two appearances so you have to take his statscast information with a grain of salt, but the early indications are not very good.
Let's mainly look at the stuff vs the results (which has shown him to be incredibly lucky so far).
Fastball is a low spin rate 89 MPH pitch with below average vertical (-6% below MLB average) but above average horizontal movement (25% below MLB average). It's gotten just 5.3% whiff rate.
Curveball is a slow (73.8MPH) pitch that gets about
The glove/hands are actually pretty good. He has made some fantastic picks in the past few weeks. The few errors I have seen have been on throws. Sometimes, he throws with poor footwork. Especially from the hole, I’d like to see him stick the right foot and step into a throw. He seems to have about an average arm, but settles for a quick release often over a power step. His feeds to 2B are not really poor, but better feeds would have had 3-4 more double plays in the past week. The range is about average, maybe just a tick below.
Overall, he makes the plays he should make. Not really a slick defender, but more solid average.