ReCAP Vintage Studio review for Etsy Integration by QuickSync

I cannot wait to cancel this app!! I have a small vintage clothing store. I need support listing on Etsy from Shopify. QuickSync has NOT DELIVERED anything but trouble. SLOW service is norm. Their latest debacle is NOT SYNCING several items that sold on Etsy and unfortunately remained available on Shopify. Can you guess what happened? My nightmare! These items were SOLD TWICE before I discovered it. This APP is not QUICK and now it does NOT reliably SYNC!!!