I have been evaluating several Shopify Chatbots and I have to say this is my favorite.
Native Shopify integration means that installation and initial training are a breeze. Your Shopify catalog is loaded for training without you having to create a custom app or generate access tokens.
You can set which products from your catalog you want to enable for the AI and even better you can enter granular details for each item like a Q&A and a product alias.
It is super intuitive, I tested it with more than 50 questions and it handled all of them well. The handover to WhatsApp includes a link to the chat history which is super useful

The product is pretty awesome as is but what would make it ace would be
1. To be able to add product recommendations if a particular product is out of stock
2. Syncing with inventory levels in real-time
3. Being able to have variations of greetings
4. Retrain individual responses to improve and refine them
5. Initiate handover to a human when unsure of an answer

Don't sleep on this deal. It's the best Shopify Chatbot I have used so far and I have purchased all that have come through AppSumo and then some.