It was shit for me. Spent about £110, got lots of clicks and not much conversions.lots of impressions though & I let Twitter do all the targeting for me using demographics, behaviour etc..
I probably won't trust platforms deciding the targeting unless you have a massive budget..
Good thing about Twitter is you can load a list of users and target the usernames which is what I'd do if I was to try Twitter ads again. Scrape highly targeted users based on tweets or hashtag or whatever and upload the list and target..
Would have to be a massive list though.. 1 million plus..