The 210 is unmatched as a single engine piston.  I have flown most planes in this class and nothing else really compares.  It will haul everything you want to haul and then some.  It's fast and sleek as well.  One step up from the Cardinal you are in so transition should be fairly smooth.  You are dealing with a high performance complex airplane tho, so make sure you get that endorsement  first and make sure you get enough hours in it to feel comfortable.  Happy Flying!