Last month I had 1 client from Friday Ads. Maybe more, but when I ask clients where did they find me, they often don't remember.
A bit strange, because when you google 'sensual massage London' or something similar, Friday Ads are solidly around the top page.
So they should be popular. But I don't think they are. At all.
Keeping an ad there won't be my priority, but even if I have 1 booking, it still makes sense for me at the moment, so I'll repost my ad later this month.