I've been to see a few over the years, some have been rubbish, and others have been spot on.
One lady I used to see described my ex partner down to a tee, and how I'd made the right decision to leave him. She used to advise you to bring a friend with you so that they could write down what was said; I kept the notes in the glove compartment of my car, which I'd left with my ex to sell and then send me the money as if moved abroad. He found the notes (I'd forgotten I'd left them in the car) and phoned me up demanding to know who'd been describing him.
A couple of weeks before I met my now husband, I was back in the UK on holiday and went to see her again; she told me that I would very shortly meet the man I was going to marry, going on to describe him, and that he would be quite a bit younger than me - I told her that wasn't going to happen. Two weeks later I met him, knew straight away that I'd end up marrying him even tho he is 10 years younger than me.
Five years ago my daughter and I went to a local social club that had a psychic evening with a medium in the function room. We thought he was rubbish, but stayed for the evening anyway. We were sat with a woman who told us her teenage daughter had died from choking on sausage rolls that she was binging on, and how she hoped she would get a message from her. Right at the end of the evening, the medium proceeded to give her a message from the daughter, and described exactly how, and where she'd died. It was quite weird as he wasn't local, so wouldn't have known her.