CeramicSpeed

With the integration being normal for bikes these days, bearings suffer because you can't get to them easily, so you get lazy. I'm a heavy sweater, so my headset bearings see some grime. I also don't shy away from rain.

The ceramic bearings seem like a farse, and they are expensive, but honestly, they do last longer and don't get all chunky like regular old steel ones do. I grease them all the same when I install, and other than my "hmm I should check these" checks, where I pull the stem up and wipe/regrease, I just leave them alone. These do last longer, so I wait for a sale or points, and get them around the time I'm building a new bike.

If you have regular old steel, you're fine, don't worry about it, but if you have the bike apart anyway, and want to save some down the road work, these do help. No performance gain otherwise, you won't be more aero, and you won't sprint faster, and your FTP will be the same.

Got it on sale, was thirty something % off so compared to a usually very expensive upgrade and with extended lifetime as well as warranty; seemed a bit more reasonable and decided to spoil myself.

Construction seem high-end, haven't seen any hambini or comparable BBs in person so I'm not able to compare. Got the gravel version which is filled with long life grease; since I'm only riding in tarmac I replaced it with all round grease which seemed less thick and allowed more free rolling.

First kilometers riding, the BB sounded a bit loud, perhaps due to ceramic balls pressed against the races but then it went quieter and pedalling/rolling seemed easier.

Difference I could notice was it is now easier to beat inertia; far more noticeable when suddenly accelerating or increasing watts, if rolling at a chill constant pace I guess one would not be able to feel the difference.

Lifetime warranty is a plus, besides, bearings are serviceable compared to big 2 brands.

Installed along a CS bottom bracket. I can't measure watts compared to original spec pulleys but it apparently made gear changes snappier and a little faster; this in the overall run should translate in fewer or shorter "dead spots" and thus reduce your times.

It looks really cool, elegant, almost as if it came with the bike (compared to previous OSPW version). I got the alpha version which is supposed to carry a lifetime warranty as bearings are protected from contamination.