I thought both papers were rather easy, straightforward although they were more difficult than the past T6's imo, which in turn is much easier than T4. The only thing I might've screwed up I think is the Bob's marbles question, decided to become illiterate and I don't think I read it properly.
The last question of the calculator was pretty funny, as the first thing I thought of when I saw it was that infamous Hannah's sweets question from the Edexcel maths a few years ago. They basically took that, changed Hannah to Suzi and made it tougher, although you only had to prove 5n^2 - 77n - 132 = 0 or something.
So all in all, pretty happy with it. I would expect the grade boundaries to be lower in-line with the T4, probably at least sub-70 for an A*. I'd quite like full UMS, so I'll keep it optimistic.