Travel fees are now a distant memory, meaning you're limited to assignments in a very local area, unless you just want to go on a self-expensed road trip. Though they change their system like the weather, so I suspect with enough push back, this will return. Or simply when they realise that there aren't as many photographers in Kings Lynn as there are willing photographers with cars in London.
The pay for assignments is a serious insult. No idea where this is generated but there are assignments out there that go for £33. Not worth getting out of bed for. I have no idea how these assignments actually get completed. But there are the odd 3 figure shoots dropped now and then. So again, if you can bend it to your will and get a few of those in an afternoon in one place, it's not the worst earner. It's just not a long term solution.
The newest iteration of the portal online seems to be as wholly automated as you can possibly make it. Zero access to people, online chat help has gone. All a bit of a shame.