The overall rating reflects the current state of the app. It accounts for all app reviews but prioritizes the most recent ones.
At first it was working great, but after creating my second campaign the bugs started occurring. Ads would be disapproved and then reapproved later, which really hurt my ad account's score (Facebook keeps track of this and raises the cost of all your campaigns if you get disapproved).
The support was good but as more issues came up, the response was much slower to where a week would pass by with no reply albeit multiple follow ups.
One issue is that after the disapproved ads was that you can't reset your campaigns without contacting him first.
The next bug after the disapproval ads was that it would show the campaign was running even after I deleted it, and so I couldn't create a new campaign.
The bug after that was that, once it was reset manually on his end, was that publishing the campaign didn't actually publish it - reclicking the app would show that it is reset, and even after waiting for over a day the campaign doesn't populate with adsets.
The response to this from support was that the campaign wasn't approved. But submitting more campaigns kept resulting in the same disapproved status.
The item I was selling through this was a regular hoodie, and the sales copy provided was very standard, so it did not violate any Facebook Ads Policies.