Compare of ease of use between EVAL-AD5940, EVAL-ADUCM355 and EVAL-ADUCM350

Dear friends,

I would like to choose between these three EVALs. And I concern about the ease of use.

Q1:

  I learn from the user 's manual that AD5940 is similar to ADUCM355, but the former needs an additional micro controller(EVAL-AD5940 offer Arduino UNO). Will this brings any differences? Like difficulties when coding or communication.

Q2:

  ADUCM355 has an ARM M3 as controller. Can I use an additional MCU to control it?

Q3:

  I would appreciate it if you experienced engineers can briefly talk about the compare of ease of use of them.(Coding, operability, possible limitations , ...)