When we decided to migrate the store to Shopify, I was worried about SEO settings and the customer base. But in fact, it turned out that you can do it without any problems via
https://www.shopping-cart-migration.com ... -migration. The migration turned out to be not such a scary process: step-by-step guidance and expert support made the task much easier. Now I think that changing platforms is not stressful if you choose the right tool.