I tried going through the wizard again without deleting the cache and it sailed right through with my previous answers filled in and no errors. :)
I added a coupon (the date picker is one of those Wow! moments). Love the options. I deleted it without any problems so I guess the view permissions are working too. I think coupons are an extremely important feature.
Over the weekend I'll try moving some products from another store into PS3 to see how it goes with a real world example.
Looking good so far.