Just kinda strange that there is not more negative effects of losing essence than a [slightly] lower social limit.
Lost 3 essence = -1 social limit
Lost 5.99 essence = -2 social limit
Lost 6 essence = certain death

I think they could have added some more drawbacks along the way.
There is no sense of "danger" when installing more augmentations.
For example the Weak immune system negative quality (SR5, p.87) state:
...A Weak Immune System often results from immune-suppression treatments used in cybersurgery and bio-genetic procedures, so it is reasonable to believe that characters that have undergone extensive body modifications are more likely to acquire this quality.Maybe each lost point of essence could have a chance your immune system is weakened.
In previous editions there was a lot of fluff that loss of essence due to augmentations made you more and more machine than human (think social skills equal to a T-800 Terminator). Maybe social limit should be lowered by 1 point for each full point of essence spend on augmentations (with a minimum of social limit 1).
Stuff like that...... Shrug.