This is by far the best bulk editor I have found. I purchased one almost a year ago and it was SLOW and it never really worked right and have very few features. This one is packed with features and is very easy to use and it is much faster than the other app I tried. I am doing 1200+ listings at a time so it does take time. I purchased the app to support this awesome seller, as I have more expensive app that don't do as much as this one app. Well worth every penny spent, even if you have the free version it is a great app.
I mainly got this app for variations, and it works great for that!