Good summation. Obviously 20 games is still a tiny sample, but there are already some Brewers hallmarks showing up on the stat sheet...
Defense. Brewers are currently 5th in the DEF column on FanGraphs. DRS (+2) has them closer to middle of the pack, but they are tops by OAA (+9). Framing is still in the red (-1.2), so should likely see positive regression there.
Speed. 27 SB is 3rd in MLB while only 4 CS gives them a nice 87% success rate vs a 78.5% league average. Currently 5th in the BSR column on FanGraphs which also includes extra bases taken and outs on the bases with balls in play.
Bullpen. Not quite on last years historic level, but currently at +1.79 WPA and 1.6 rWAR, which are both 3rd in MLB. They haven’t shown overwhelming stuff (98 FIP- | 13th), but have kept runs off the board (74 ERA- | 4th).
Rotation. Similar story to the bullpen where they haven’t had the best stuff (103 FIP- | 16th), but are still keeping runs off the board (93 ERA- | 7th). A scooch ahead of the 2018 (97 ERA- | 107 FIP-) and 2019 (99 ERA- | 103 FIP-) rotations on a rate basis to this point.
Lineup. Here’s where the Brewers have broken character. Currently sporting a 120 wRC+ and 5.7 R/G, both 3rd in MLB. I don’t think anyone honestly believes they are as good as the 82 Brew Crew (who also sported a 120 wRC+ at the plate) but barring major injury they should be much improved over last year (92 wRC+) and even with regression incoming have a shot at topping 2018 (105 wRC+) for the best hitting group of the Stearns/Arnold era.