QuickEdit: Bulk Product Edit

I haven't been able to dream up a scenario yet that stumps the conditional rules when building actions, and for that, I am thrilled. Actions like prepending "x" to existing text, updating only pre-existing metafields, and having access to virtually every available product/variant variable have made this stand-out to me. I can't say enough, the developer has done a stellar job here. Just a note: I have been able to execute much more complicated bulk edits using this app, than other existing apps.