Finished Cyber Heist last night. It's the Ascent but a bit more green, which was fine with me!
Took about 4 hours to do the main quest and 3 side quests, one of which needed to travel back to Veles. There's nothing included that fundamentally changes how it plays, other than melee weapons but they added the bat to the main game anyway.
None of the new gear is essential (but the gear for finishing the story is neat) and it's still weird why they made only one gun that mixes damage types and remains the best by default. Not sure why they didn't add a digital weapon to this larger piece of DLC since the only other one is locked to a gear DLC.
I'd definitely have liked the DLC to take the shackles off something since it's endgame content but I didn't dislike playing through it.