This is a pretty solid stand, it's well built and looks actually quite neat, for what it is. My only criticism comes from the connection to the main part of the Spider Pro keyboard stand. Although it holds the laptop stand in place reasonably well, I really wouldn't want to put a heavy laptop on it. Also the laptop stand itself swivels around whenever you push it around. I would prefer that once screwed down firmly it to, well, stay screwed down firmly. That said, it does what it needs to and I certainly wouldn't call it flimsy. Just that with the rest of the frame being so solid, that screw should be stronger. All in all, if a laptop on your Spider Pro keyboard stand is what you're after, this will do the job fine.
* Ceny zawierają podatek VAT. Do ceny artykułu(ów) należy doliczyć koszty wysyłki. Oferty ważne do wyczerpania zapasów. Za błędy w opisie i innego rodzaju pomyłki nie ponosimy odpowiedzialności. CK=Cena katalogowa produktu