Very expensive for a catalog that do not handle variants.
The support told 3 months ago to wait because the feature will be added soon..

Very limited options to align to you own branding, poor layout and lack the ability to select individual products from a collection.

This app needs a lot of work to get to what it promises. There are only two options for themes, with little difference between the two except number of images per page. Many bugs. Can't edit once you create a catalog. So much more but I will say I spent a lot of time on this only to conclude it just won't work. Disappointing.