RE investor / agents in CA - what is the best flat fee brokerage?

[Dan A.]

I am finishing up coursework for my RE license so will soon need to choose a broker. I'm going to be using my license primarily for my own transactions, so my primary objective is to find a broker with a favorable commission structure to the agent and a good reputation. Some limited support on a one-off basis would be helpful as well. I've heard of REeBroker Group, Big Block Realty, and a few others but don't have any firsthand experience with any of them beyond what I've read online. 

I would appreciate any insights or experiences from investors who have worked with any of these brokerages. Pros, cons, and whether you would do anything differently as you were getting set up.

Thank you!