House of Nyabinghi review for Google & YouTube

After complaining a year ago, this app is still incredibly glitchy and does not appear to be syncing correctly with the Google Merchant Centre (GMC). I still have old products showing up on GMC - and subsequently Google pages - despite me archiving them in my Shopify backend and removing them on the GMC...only for them to reappear on GMC. Now my new products aren't syncing correctly to GMC and I can't re-verify my website...nonsensical behaviour again so have had to reach out to Google Support...again. If I could give -10/10 for this app I would.