There are 64 potential client personas possible according to this model. The best and worst clients summarized:

The full matrix, in development, is here.

In the end, your success will be highly determined by the following three actions:

1. Empathize with your client’s mindset (end user research is always inferred)
2. Communicate expectations, risks, instructions, deliverables, and feedback
3. Set boundaries in the form of a good contract, and through excellent project management