Tbh, a Fatip razor made of brass is almost the same price as a zamak razor.
Well, you can't really compare Fatip with EJ, Muehle, or even Merkur as far as finishes go. Performance is fine, as it usually is with anything that keeps a blade in place, they shave just fine, but the finishes are awful. My new Fatip started to lose the plating on the handle after few uses. I personally prefer EJ quality, even if it might not last as long as the Fatip. Used my DE89 for some months and didn't show any signs of wear.
The lasting time is subjective. I personally don't see any problem in a $30 razor breaking in 2-3 years. With good, common care, it can last longer, but I wouldn't mind replacing it. If that would happen with a $200 razor, I would have a problem with it. But at this low price point, I don't mind at all. They are not really consumables either, as they have the capacity to last many years, based on how you care for it.