Textly: Product Custom Fields

Update after nearly one year: still 5 Star!!!
This app has been invaluable to my business and works flawlessly. Support has been great and very responsive. Highly recommended.
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So far, this has exceeded my expectations. Compared to the app I use on my 'legacy' shop, this feels fast and well done.

I needed a few more features and tweaks and the responsiveness of the team was amazing.
What was beyond expectations was that they actually delivered- within days. Amazing.

I am going live now and will update my review after a few weeks. If it is still as strong, I will also switch my other shop to this app.