Palm Beach Vinyl review for CedCommerce eBay Integration

This app is a constant source of stress and frustration for me. It doesn't "just work" at what it's supposed to do and you have to watch it like a hawk. I sell single vintage items 200+ per week on shopify, then import them to eBay. I have always had the ongoing issue of items selling on my website and not being taken down from eBay even though they are out of stock on Shopify. When this happens the order on eBay of the unavailable item on Shopify doesn't sync to my shop so I am unaware until an angry customer reaches out to me because their order is past due and stuck in eBay. I'll have to refund the customer and it hurts my eBay seller status. One month I even had 20+ cancellations and incurred an higher final value fee from eBay until I was eligible for re-evaluation the next period. This is crazy because overall we are very on top of things. I also find that the support doesn't understand English very well and will often touch settings on my integration without explicit permission. This has happened at least 2 times which has caused me great concern.