Very slow It takes time for it to load the web page you want to shop. I had time were my rewards were not recorded. Vast also takes months before it pays you back. I feel like it not worth it.
Basic app App seems okay, but quite crippled. I haven't made any purchases yet either, so we'll see how that does. Store list is very short. Kohl's site menu, search, and cart buttons don't work, so finding things is a nightmare. Can't find a way to view a site in desktop mode. Love the idea Vast, but the app needs work/improvement and the store list expanded.