Ablestar WooCommerce Importer

I was totally happy with this app, until I realized almost 4 weeks after importing my customers and orders, that it somehow changed 400 paying customers into non-subscribers within Mailchimp. Literally 5 hours after troubleshooting with Mailchimp support, who were patient but not the most helpful, I've gotten them back. BEWARE, back-up, and then double check your email contacts before and after import. I can't stress this enough. The support team for this app is very quick and helpful. I may have just been unlucky, but be careful.