Four things, in this order.
"What if they have a terrible day and take me with them?"
A fair worry. Three things stand between their bad day and your account, and none of them depend on the trader behaving.
4.2 on Trustpilot
I use Alertsify for copy trading and it's been a game changer. I copy trade 2-3 different people at a time and their trades automatically get executed in my account instantly. Been a great experience so far!
I love that you can set your own position size and it will always keep you at or under that position size. Total game-changer. The copy trading element is revolutionary as well, works perfectly in my opinion.
By the time I would've manually placed a trade, Alertsify already had it done. What really won me over is the auto sizing. I set my risk amount and it just handles the rest.
One plan. Every trader on the board.
Pro is the copier plan. Copy as many traders as you like from the leaderboard, with Auto and Approve modes, the full risk-rule stack, and a receipt on every trade. Some traders also run a paid channel on top; that is their price, set by them, and shown on their profile.