2 quality tuners mentioned above. The 2 most trusted IMO with Eric from LET starting to gain some notice.
Pretty different styles of experience for the customer presented with Livernois and Unleashed.
Livernois offers a tuner specifically built for the ecoboost that they tout as being able to control more parameters than the others on the market. They have levels of tunes (many to choose from) based on power, fuel octane, mods and have recently been adjusting things like shift pressure and fan timing per customer request. Plug n play with no datalogging available and a visit to their dyno is a must if wanting to get a custom dyno tune.
Unleashed uses the SCT and comes with base tune. You then datalog for Torrie to work his magic on. From there he will also adjust to your mods, and whatever else you or he feels may be needed. Don't know if you need a laptop to take full advantage of datalogging, a good question I would ask.
Different experience for you, but both proven effective.
Rich