Cin7 Core Inventory Management

Recently after the merger with Cin7 (previously dear system), the support and issues have increased. We have a major bug in product integration for last 5 weeks and still waiting for resolution. For them it is not a priority and no proper work around provided. Not sure if this is faced by any other customers. No escalation channel, no account manager support. We are a customer for last 3 years but now looking for replacement.

DOES NOT sync inventory between Ebay, Amazon and Shopify. Or it doesn't seamlessly. I wanted to see my inventory on one page, but Marketplace Listings were in the Integration Channels --> Listings page, but Shopify was in the Inventory --> Product page. Exchanged emails with Support before getting a workaround solution, which wouldn't have streamlined anything. The interface was pretty and semi-intuitive , which is a shame.