The "no random trinity light party" leveling path: Some questions

[Omedon]

You can level to 50 in POTD, and then from 50-60. So it basically drops off there.

I haven't been back since passing through to unlock HoH for SAM leveling, but do you mean I can ride POTD to 50 by repeating, say floors 41-50, then start them over post 50? How does one best utilize POTD to grind actual outside-deep-dungeon real job levels? As I say, I only know HoH's interface when it comes to re-running the content over and over, is the experience similar, or are POTD kind of in a 1.0 stage of what became the HoH experience?