[CanRay]

Quick question. What DOES a lower Essence get you, in RAW. Just so I'm crystal clear.

A sooner death when attacked by essence eating critter.

[Charybdis]

Quick question. What DOES a lower Essence get you, in RAW. Just so I'm crystal clear.

A sooner death when attacked by essence eating critter.

Less Cyberware/Bioware/Genetech therapy options for future development

[Crash_00]

Lower Magic Maximum and possible burnout.

[Critias]

And some penalties when folks try friendly mojo on you.

[Crash_00]

Oh, and of course more beeps (usually unless your gear is all Delta) on the cyberware scanner.

[Medicineman]

a Malus for Magic or Mundane Healing

He who dances with the Letter M
Medicineman

[Sengir]

I hope You also insist on a different attitude from a Mage or Technomancer ? Because these might far more removed from normal  feelings & emotions than a Char with <1 Essence !

If they are powerful enough, sure.