Yes, the open book exam thing does exist but the amount of 1st/2:1 has remained the same. For example in land law last year the average grade in the summer for an essay question was 58 and for a PQ was 56. In fairness, land law is difficult in general but the teaching of land law here is top notch in my opinion, it’s just the marking is harsh. From personal experience, having talked to and read some of my friend's coursework/exams at other unis ( Cardiff, Swansea and Bristol) there is a bit more leeway for the 2:1 ( particularly at Swansea) for spelling errors, vagueness etc . The law course here is definitely challenging and it doesn’t help that the teaching for some modules is Cr*p ( criminal law springs to mind like the lecturer is so unstructured in his approach ) but you get modules like land law, Contract law where the teaching is very good but the average grade will be around a 53-57