I started with a lyman balance scale many, many years ago, while reloading shotshells. It only went to 500grains so I up-graded to a RCBS 10-10 balanced. It is a very good scale that I trust and check everything else with.
I currently use a midway digital scale that works well, but it needs a warm up time, that my balance beam doesn't
Pretty sure I have a Chargemaster in future, reviews on it are very encouraging.
Pro vs cons (IMHO)
Elect Pros:
an exact number (clear reading)
fast (after warm up time)
fast zero check
Elect Cons
Lower certainly (less trust)
Powered (find batteries or an outlet) no outlets if I take it to the my range
warm time likely on most units.
Susceptible to electronic noise
Balance Pro
It works
works with out power
high confidence
No drift in readings
Works great around electronics
Balance Cons
Slower to setup
slower
harder to zero.
YMMV