I’ve ordered some household items (door stoppers, tools etc.). The prices were somewhat cheaper than AE, the quality was fine (some things were better than expected. Some very cheap items were… Let’s say they were priced according to their quality. Thought other very cheap items turned out good, so it’s a gamble) and shipping was OK. Never tried the app for privacy reasons, but the site seems ok-ish (it’s a bit janky, but I suspect it’s due in part to some privacy addon I use. In short:
Don’t use the app.
Don’t buy very cheap stuff unless you’re willing to chance it.
The “prizes” either appear only in the app or can be disabled via ad blockers and/or privacy addons.