Hello again, I am Blunty, and yes: this is a review for a gaming chair that’s actually aimed at people with spines. The Buro x PowerA Sentinel is what happens when a controller company (PowerA) teams up with an office-chair mob (Buro) who clearly spend way too much time thinking about ergonomics… and honestly, I’m here for it. I first sat in this thing at PAX Australia and my brain legitimately stalled mid-conversation because it was that immediately comfortable. A few months later it randomly appeared at my door with zero warning (cheers for that), so I built it in about 20 minutes and started poking at every adjustment like the fussy aging gamer I am. I go through the feature set properly: height/depth adjustable headrest (and you can remove it entirely), a ratcheting height-adjustable back, body-weight activated lumbar support, seat depth slide, and the infamous “5D” armrests (no, you don’t fold into a hypercube, unfortunately). The recline is properly usable too, with locking positions, and I spent a solid chunk of time leaned back like a lounge lizard watching cartoons. After several days of real use, it’s a night-and-day upgrade over a cheap office chair: I can go way past the usual 6-hour back-ache threshold and stay comfortable. My only real nitpick is the side-to-side armrest swivel is a bit too easy to bump accidentally.