Migration of about 3000 entities was completed flawlessly in 30 minutes. Thanks for saving me time and money! Just one issue - when migration starts, your script is searching for images related to products, and shows 100% progreass bar after copying of each found group. I was worry when saw «100% complete» after 10 pictures moved instead of 2000 🙂 So, my advice is to rewrite your script to do 2-pass job: 1) find and remember all products and pictures to be migrated; 2) start migration with correct progress bars displayed. Owtherwise I'm happy, thaks once again!
Rafael Pankratau