I suppose in some sense it amounts to that at a very fundamental level (though I wouldn't really say I "like" Obama).

But, worded more eloquently, I think that Trump's ego, insecurity, arrogance, and overall personality makes him more likely to abuse his power; especially for petty or vindictive reasons.

Not incredibly more likely. I don't think he's going to call the NSA director and ask him to spy on an ex-wife or something (probably...). I just think Obama respected the gravitas of his position more.