40 to 42 is remarkable easy, it's designed that way! If you've ever flown the type before, then don't stress. If you haven't touched it at all, the aeroplane is designed to be a pleasure to fly - for example I was on the PA28 when my school switched me across to the DA40 2 flights before PPL, and it was fine. Completely finished now for a while and both diamonds are great. Different beasts to the Piper (if you haven't flown one before, wait for a) a flapless landing and b) PFL and you'll see just how well designed those wings are).
Hope you can score some conventional cockpit time though, or have some previously, as I met some brits in Asia earlier this year who only worked ever on glass, and when given a much older flight deck setup they became somewhat confused.
Best of luck with it!