> Also, In my own experience for my business ( also entertainment) I have found reddit ads to be useful.

Reddit is very hit or miss depending on your target audience.

Depending on your Reddit target audience, a lot of people could have adblock installed. They might be loyal to communities that have approved vendor lists where everyone parrots the same vendor recommendations back and forth in every thread, so not being part of that game means you're left out. In some niches, the subreddit moderators have a financial relationship with vendors and they'll put their weight into swaying every conversation away from competitors.

For other niches, none of this applies and Reddit can be a good ad destination. It really depends