I wanted to say how much this trainer has mattered to me playing Starbound. I generally hate combat in games, and just using infinite hit points and energy means I can concentrate on the things I enjoy - exploration and building and just breeze past the boss battles that would otherwise stop me in my tracks, never to return.
The in-game “admin” mode makes you immune to damage and energy concerns, but also changes several other things. Using the trainer instead, I also get the feedback of the character “ouch” sound to know when I would have taken damage in a regular fight.