PROS: At 6-foot, 200 pounds, Stewart has the size for the position. He's a good athlete in space, but not a great one; I would consider him a plus athlete when playing around the box, but would not say the same for him deep in coverage. He's reliable in deep coverage in 2-high safety situations.
As a strong safety type, Stewart keeps everything in front of him. When in coverage, he plays a decent amount of "robber" roles just beyond the linebacker level. He's a bit of a momentum player. When he's in the zone, he can really anticipate things well and can be seen flying around the field.
CONS: To this point, Stewart is more of a helper than he is a singular difference maker. In coverage, as stated above, he's fine to put in 2-high safety situations, as he can cover half the deep field decently well. But you do not want to put him in single-high situations by himself on the back end. On tackles, Stewart can make some stops, but he's not a one-man show stopper like some safeties are. When Stewart anticipates well, he can really make plays on the ball and on ball carriers, but it does not happen with regularity. Instead, Stewart is often a tad slow to process things and is caught playing catch-up more than you'd like. He's still young, experience speaking, so an improvement there could come with time.
Overall Stewart has a decent-to-good outlook with athleticism and instincts, but as a rotational safety even at UF, he needs to show more across the board to be any sort of impact player in the NFL.