I've had the knob installed now for about a week. I was super excited to get it. Here are my, hopefully, unbiased review for others that rely heavily on honest reviews. I'll try and keep this short and to the point.

Overall: I would definitely get this all over again. Still don't know if I like my knob a bit taller or not. I like look of a shorter knob, but there are some pros to the taller knob. I wonder if there is a way to lower it. I do plan on upgrading the shifter assembly with the stage 2 upgrade kit from Acuity. Other than getting the fully adjustable assembly by Acuity, I don't know that there is a way to adjust the height of the shifter knob.

Size: The size is a bit larger than the stock knob. The head diameter not so much, but overall it is a bit taller. As a 6' 3" guy, the know fits my hand much better. However it does stick up about an inch higher than stock. By no means does it impair you access to the media/climate cluster. But it does give an illusion of a longer through, even though it's probably negligible. It took a couple days to get used to the new higher position. Since it is taller, its closer to my hand position on the steering wheel, but I have bumped it a couple times turning sport mode on. In my opinion, that button is in a horrible location regardless of the shifter knob. Another thing to realize with a taller knob is that items stored in the cup holder are no longer in the way. Before, if I had a drink in the cup holder it would be touching my forearm evert time I shifted. Now the shifter is just tall enough to raise my for arm out of the way.

Shape: As I mentioned before, the knob is large enough to fit my hand. This is primarily because of the shape. It is quite comfortable to handle both grasping the knob head or as a joystick.

Aesthetics: I think this know looks great. The black leather matches the stock shifter boot perfectly and so does the red stitching if you decide to get it. The logo is a nice touch and not in a pretty conspicuous so if you don't want logos plastered on everything, don't worry about it. But, it's still there if you want to show it off. The embroidery of the logo is nicely detailed.

Weight: It is much noticeably heavier than stock, when held in each hand. However, I don't notice it quite as much after it is installed. There must be a reason for it to be heavier. Maybe it makes it feel more solid when shifting.

Materials: Like I said before, the leather matches perfectly. It is quite comfortable to grasp. I’m not a leather expert, but it feels way better than the stock boot and knob leather. The leather is the main reason I got this knob. The aluminum on the stock knob gets so hot in the summer and freezes my hand in the winter. I haven't had the opportunity to drive in really cold temperatures but I suspect it will be much better than straight aluminum. I don't know what material the stock locking nut is, but I am very pleased to know that the new one is stainless steel.

Installation: I would bet the installation is easier than replacing the wind shield wipers. The directions were straight forward and color coded. The most difficult part was making sure the knob was oriented correctly as there is now method of measurement. You're just gonna have to "eyeball" it. I tightened mine enough to not move it while driving, but if I put two hands on it and gritted my teeth, I could slightly adjust it clockwise or counter. I did this about 3 or 4 times while driving (at a stop light of course), until I was satisfied at its orientation. Who knows if it's perfect, but its all about how if feels for you when you use it. If you like it off by a degree or two, go for it. I did notice that the shifter leaver is not centered in the housing. It is offset by a bit, closer to the driver.

Perfect, as soon as I put this on I was in love. You guys nailed this one!
Size and weight are bang on and so are the looks (red stitch)
It does lift your shifter height about an inch. But shift quality and grip are so much better!

Wow!! Been waiting on the gem for a while and glad I did. The design and weight just work perfect. Get this shift knob.

27won has a winner here. They’ve done what no other company has done for Hondas, and built an amazing leather covered, weighted knob. The shape is classic, and tasteful. The quality is top notch. The feel is perfect in your hand. I replaced my Skunk2 weighted knob (which is a great knob, except for the searing heat after sitting outside on a summer day). The fit is perfect with the included lock nut and the stock shift boot and ring sit flush against the bottom of the knob. If you’re tired of hot metal knobs, or glorified plastic (resin) knobs, get this. You will not be disappointed. The shape and feel really remind me of the stock OE knob in the EM1 Civic Si (with more weight and a bit wider profile). I got the “stealth black” knob to make it it a bit more interchangeable if I end up with a different Honda in the future and it really has a great OE look in my current 19 Si. Thanks again 27won.

I am more than happy with this knob. The weight feels superb and makes shifting feel even more crisp than before. It doesn't get very warm when sitting in the sun which is a welcomed change in comparison to the stock Si shift knob and my Billetworkz knob. Superb product, 27WON!