I had a Club member who had only flown C172, not even a PA28, need to buy a 6-place to replace his 172. We found a PA32. The conversion took about 3 hours, absolutely no problem at all. As above, the biggest things are the Weight and Balance, wisely you've got a spreadsheet going, and the fuel system. I know one PA32 owner with a massive kitchen timer mounted on the panel, to remind him to change tanks. Landing? As easy as an Archer, much easier than an Arrow IV, which in my view is the worst aircraft Piper ever made and is to be avoided like the plague. Oh, actually, I'd include the PA32 Lance, which also has a T-tail, quite nasty.
I'm just amazed there aren't more Saratogas about. Apparently Piper opened the line up again but closed it soon after as it wasn't selling. Shame.
TOO