For those curious: my score for the theory part was 49 out of 50 (pass mark 43), and for the hazard perception was 60 out of 75 (pass mark 44).
It's definitely a bit more nerve-wracking than doing the practice tests, and while the practice questions are identical to the real ones, the hazard perception clips most certainly aren't. The DVLA are decidedly more inventive with their clips than the Driving Test Success folks - one clip had a dog towing a small child at speed across the road, while another contained sheep being indecisive ("let's go towards the car! Wait, bad idea, um, um, um, run away!").