Although I rated it 4 stars, it can easily be a 5 star product. With the ability to launch up to 1500 simultaneous ad copy alternatives in FB Ads, this can be quite the time saver. However, I needed to juggle around screens to make sure the ad text was not cut off, and had to remove some alternative for a campaign I really needed to get out right after I bought the tool. I also needed to optimize the experiment for purchases, and had to publish the ads optimized for reach or traffic first and then duplicate the campaign within Facebook, only to remember to come back to Marpipe to pause so I don't have two campaigns running.
Still, I saved quite a bit of time, so this one's a keeper, but I am crossing my fingers we'll see some improvements soon!