AEM EMS vs. Greddy Emanage

[BDub13]

I am just about to dive into a turbo ka24de project, and and in search of the most cost effective engine management. The goal for this project will be 250-280hp initially once the turbo setup is installed. then, further down the road with some more modifications, looking to make 600 horsepower. I want an engine management that will be capable of this, with out having to upgrade to a better one when going to phase 2 of the build. I know the AEM is much more powerful, but also way more expensive, so would the Emanage be capable of the second part of the build? please only answer this post if you have actual experience with either of these systems.