I have sold a very small amount of my own PLR on Tradebit. I keep planning to upload more as I can see potential, but there's also a lot of junk on there, at extremely low prices, so I think it helps to choose things that aren't already saturated to differentiate yourself in some way to what's already on there.

There's so much junk on there, if I see the url Tradebit when I'm searching for PLR, I don't click. Already bought junk a couple of times there.

My Problem is I posted my own product
and sold a few
with no Resell Rights Whatsoever,
Yet there are at least a dozen other people selling my Work.
The Staff does nothing to try and Remedy this.

Just joined around 4 days ago myself. As already mentioned, alot of junk there. Still plan to do more testing. Nothing to lose but a wee bit of time.