I need some help with Tiled Map Editor

[headcaseGames]

really enjoying this editor for level layout, however as I'm designer only (not coder) I have a few issues that aren't immediately clear to me. We're still figuring out our pipeline and so I thought I'd ask some folks for a few basic rules of using this program. I've looked around online and, surprisingly, FAQs/etc (for non-coders) regarding Tiled are not very easy to find.

The main questions I have are concerning Tile Layers vs Object Layers. Consider that I am build a basic 2d platformer - obviously, I will lay out the non-interactive 2D elements on the tile layers, likewise all the platforms you will jump on and so forth. For interactive items/enemy placements/etc, I'd suppose you will put them on the Object Layers - is this correct? For those of you familiar with this stuff, would you just put a lot of those interactive elements as simply tiled layers as well?

I am very foggy on what "object layers" actually mean - I see them being used as "start points" and such in actual examples I have been lucky to come across. Any further explanation for us laymen would be a huge help. Let me know what you think, thanks for reading!