RNS5 10 VS Desai 290, which is better?

Well, Desai claims to have acquired Siemens' original automotive electrical department, which is not too bad. Also called unbreakable installation. RNS is really high. I almost shot the popular version 5 10 of Haimao 3300 two days ago. At present, the key is to entangle the cost performance and directly match the next change. . . It seems difficult for me to choose. . .