I bought one gaming/computer from Lazada. Those OEM, imitate Secret-lab design one. Abt $120.
But the quality seriously quite okay. Can recline 180 degree too, means u can lie flat and sleep. Used for 2 yrs plus now so far so good. Plus installation included.
Secret-lab $500 plus, still must top for installation, really pui chao nua.
Most impt is read the reviews for the retailer, those with large no. of positive reviews so far quite okay, I ordered 2  computer chairs (one for myself, one for my mom), one work desk and lots of other gadgets so far no issues
Tip- Go for those established retailers with large no. of positive reviews