VSI: Variants Shared Inventory

Painful user interface... takes forever to set things up if you have more than a few products. Product selector is a pain as well, no photos, just names, search function doesn't work and I feel like it never showed all the products. When choosing the variants (and again, I have a bunch), it's impossible to keep track of which variants are already selected. A "select all variants" option would be so helpful. Instructions not super clear, too. Sorry, just don't have the patience for this app. I rather continue setting my inventory to 1 or 2 and then manually upping inventory than using this. Don't want to bash the devs, as I don't know how much work goes into these, but trying some constructive feedback from an actual user with a lot of products.