Weight and price are competitive, and the rings shift well. I don't really like M30--it's basically oversized GXP, and it has the same problems where the bearings aren't loaded evenly, like in HTII or BB30. I would (and did) go with FSA,
https://shop.fullspeedahead.com/en/p...ro-modular-agx . Cheaper, <50g heavier, lower bearing drag on the BB design and better bearing life. Or say F it and get GRX--slightly wider range (48/31), a little heavier, great bottom brackets available anywhere you look, Shimano shift quality.