Completed the tests about a day ago, some of them were easier than others, some of them I feel like I completely screwed up. I felt the maths test was very easy and I finished that with loads of time to spare, then again I do study Chemistry at university and have been studying much more advanced maths for a while now. Some of the other tests were considerably harder, like the orientation one for example.
I wish the best of luck to everyone who applies, may the best get through to the next stages.