I'm looking foward to the offhand pistol buffs and the Relic (of Aristocracy) fixes for my Celestial Mechanist. This should significantly increase the damage.

Mechanical Genius: For a short period of time, the effect will remain active even after the mech moves out of range of the engineer

Not quite clear, why they don't get rid of this mechanic/penalty entirely, knowing how much the Mech enjoys to wander off.

Overall, mostly buffs, so probably most will be happy.