Having local support and ability with tuning is always the best option regardless of what ecu system.

The best ecu in the world is a paperweight unless you have someone who can install and use it correctly.

As others say, just make sure whoever is doing the job does have a good reputation at this sort of thing.
I'm sure the ecu is capable...but EMS4 googles as AEM, and I fucking hate AEM lol Their software is usually a nightmare.