Its best to stick with a tuner that specializes in the ecoboost platform rather than someone that supports multiple brands.
I've been running a tune from JDM Engineering in my Mustang for 6 years. It took one data log and one revision to get it dialed in perfectly. They support Ford platforms and nothing else.
I think on a completely stock 2.7 the Livernois tune is probably just fine. If you're going add-ons like bigger turbos, down pipes etc. look for a specialist.