I got an A for F334 and was told that this exam is harder contrary to what people seem to saying here which is good. It's supposedly harder due to questions being much more focused on applying your knowledge rather than recalling, but i'll know more when I've done more papers; i've just done the specimen and it was pretty hard because I havn't gone through the revision guide or anything yet, but to be honest that's because I find doing past papers and using the mark schemes a more direct way of learning the material.
I will agree with others after doing this first paper that it seems a lot more synoptic than F334 which I suppose is a good thing :P
I'm retaking F331 in june as well just to try and get a bit more security :P