Ive ridden in a couple cars with ebay coils like that and other than being ridiculously stiff… I mean like you mine as well have a solid suspension setup for what they are there not bad…
Anyways it all depends on the shocks… if you have stiff springs and their set low then your dampers gonna bottom out and blow really quick… but if you pair those things up with some bilsteins or konis theyll ride pretty decent