One of the cost-cutting measures with these cheaper mechanicals is that they often use lower-quality key switches that cannot be swapped out easily (or at all) if they fail. I see someone complaining about that on the Dierya page. I’d avoid that one.
I haven’t used Redragon. My last purchase for an affordable mechanical was a Corsair K63 TKL. My main daily driver is a Das Keyboard Prime 13, but it was expensive.