Hi,
CFDs do not have the best reputation,
as various lawsuits in Europe / Asia have shown.
https://www.financemagnates.com/for...kets-faces-class-action-lawsuit-in-australia/
Even bigger players like IC or CMC markets have had their scandals.
Still, if you have a broker that more/less cares for it's own integrity and reputation,
they can be attractive products.
However, not having a central exchange is a huge drawback that you do not have with futures;
and which also limits transparency,
why for they are prohibited in the US.
Where have you seen 1000:1?
That is huge;
all I know, is 500:1.
Today you need to prove that you have a track record as trader, before being granted something like 300:1.
30:1 is the standard I think.