There was nothing wrong with it people were bitching mainly because they didn't revise enough. None of the questions were out of the ordinary they just were more time consuming imo then anything
None of them are particularly difficult or pose any serious mathematical challenge.
With all due respect that viewpoint is quite naive on a number of levels. Only around 20-30% of students are 'good enough' to move on from GCSE to A Level of those probably only 70-80% make it to the exam period and of those 25% make it to the top grades. This equates to about 5% of those starting year 11 making it to an A grade in AS maths.
Perhaps your wording should have been "Not a challenge to me". I can assure you from teaching GCSE Foundation and Higher and A Level maths they are challenging for many.
Back to the OP. I have taught all 4 major board now and IME from most to least student friendly: AQA Edexcel/OCR MEI
IME MEI has caused the most problems for weaker students but provides (again IMO) a better course for aspiring mathematicians.
OCR MEI, mainly because I've heard that they have coursework in A2. I think OCR's course is the most interesting (especially FP3 - Groups & Multivariable Calculus are much more interesting topics that what appears in Edexcel's FP3).
I'm a complete airhead but i still think a level maths is a bit on the easy side. I think this is cos easier exam boards will get more centres to do their exams and will subsequently get more moneyz. What we have today is exam boards competing with each other to make exams easy as possible without getting into trouble with ofqual.