I have made a few HD projects with PI3 and it works great.
Also recently changed my monitor so as not to have to change my screen size to render but the fact that was able to was a great feature.
Give Digital Fusion a try as well.
There DFX version is reasonably priced.
Since I switched to it from AE, I have never turned back (although I have at times wished I had some of it’s 3D camera stuff).