I don't mind PP and for some blocks/patterns I would not attempt without PP. But I never PP simple blocks. I save PP mostly for blocks that have odd angles or require precision like Mariners compass, NYB, curved flying geese, etc. And I have to admit there are some amazing PP patterns out there for animals and flowers (check out
http://www.silverliningsoriginals.com/b.html ). These types of designs/blocks would be darn near impossible to do without PP. I have also found I do best with PP when I stick with batiks where it is very difficult to tell the right side or wrong side of the fabric so if you have that mirror image problem as peaceandjoy mentions it isn't an issue.