Padang is an OK base - it shakes a bit !
You can expect a tremor every 3 - 5 days which is part of life. If you are in one of the main hotels, they are usually earthquake proof.
Local restaurants are excellent - cheap and good.
Have a plan in the event of a tsunami warning - torch, shoes, bag of goodies etc because you may need to move quickly.
Flying - easy....... Gents hours, 2 crew, day departures, overnight returns.
Airport is very easy to operate into and out of - coastal. high ground to the east. Usually depart north, arrive south, straight in, no issues.
We were pulled out last year for a load of poor info and wrong decisions due to old geophysical data about earthquakes. I would not hesitate to operate out of Padang, it has been there for a while and will be there for a while more