How long do you use a new tool before you tell anyone about it?

Whenever I find a neat app here I want to send it to people right away. But honestly half the time I end up deleting or forgetting about the app after a week anyway.

So now I try to wait a bit to see if I actually keep using it before I tell anyone else.

How do you handle this? Do you share things instantly, or wait until you know it’s actually good?