— Singapore

https://www.drwealth.com/brokerage-account-singapore/ listed 5 Factors to Choosing the ‘Best’ Singapore Broker. Many of those factors are unimportant to me. Here are my criteria.

1. criterion: commission
2. criterion: customer support by phone/email
3. criterion: usability features. Each user has her own picks. I prefer
   • market depth of orderbook
   • charting
4. criterion: safety of client assets [cash balance and purchased shares]. CDP is supposed to be safer.

POEMS emerged as a clear favorite due to 1) comm 2) phone support

— US context

1. commission
2. safety .. K.Hu pointed out the Rbh weakness
3. usability features .. Rbh is rather barebones and primitive, but good enough for me
4. phone support