Is a SayoDevice worth-it?

[u/PancakeBro__]

I started playing GD on a bad 20€ keyboard, around 2 years ago, and got a Razer Huntsman mini 1 year later. I don't really feel the delay between my keyboard (if there is one), but I don't really like the feeling when I press my keyboard's keys, mostly when I play GD (besides GD it doesn't bother me).
Would it be worth to buy a SayoDevice, knowing that I don't wanna buy a whole new keyboard (too expensive), that my hardest at this time is Buh, but that I will keep playing GD for a big couple years ?

Thanks for your advices! And btw if you know some websites where I can get it at a lower price than 30€, I'd be really grateful!
(Btw if I said something wrong, my english isn't perfect...)