When reading this review, make sure to consider that I have only used it with the HP - Spectre x360 2-in-1 15.6" 4K Ultra HD Touch-Screen Laptop - Intel Core i7 - 16GB Memory - 512GB Solid State Drive - Dark Ash Silver, model number 15-BL112DX, which I also purchased at Best Buy. I also have access to the newest Microsoft Surface Pen from my daughter new Surface Pro, and purchased a Wacom Bamboo Ink pen to try out and compare initially, so will highlight some differences from those pens.
I'm into digital art/painting/sketching as a side hobby, and one of my first disappointments with the pen was that the tilt function doesn't work on the newest refresh of the Spectre X360 15" I purchased. However tilt is implemented, HP decided to only support it in one laptop so far, which is the newest 8th Gen refresh of the 13" Spectre X360. I would purchase that instead of the 15" for the tilt function, but I need the graphics card in the 15" for 3D modeling, so no tilt will have to be a compromise. The biggest issue is that HP doesn't really have any solid documentation on how tilt is implemented or what models are supported, and I only learned after a few hours of searching the net. HP has since posted a compatibility chart, but even that is confusing and doesn't break down support by features. I'm not sure if links are allowed here, but you can find it by searching "hp pen compatibility" in Google, and it is the first result.
My second issue with the pen was that out of the three pens I tried mentioned above, it had the highest activation force required to initially register a pen stroke. This is something that was more irritating when I first started using the pen, but quickly faded as I got used to it and quit picking up either the Wacom Bamboo Ink or the Surface Pen.
My third and final issue with the pen is that documentation is really poor, there isn't a support page for it yet on HP's website, and there is no mention anywhere on how to get replacement tips. The tip is replaceable, I just have no idea at this point whether I can purchase them somewhere, and if I can how. I contact HP's Support about this, and due to the language barrier from their obviously outsourced support they kept asking me if I wanted to set up a support ticket for a defective product to try and get a replacement. I haven't found a way to get in contact with a native English speaker to sort this out. This is a huge issue, because pen tips wear out, and they wear out quickly if you're using the pen consistently. This is the primary reason for the 3 star review right now, and me selecting "No" that I won't recommend it to a friend. If HP fixes this, gets a solid support page set up, and streamlines the ability to purchase replacement tips, or advises if other manufacturers' pen tips are compatible, then I will adjust my review accordingly. Otherwise, the pen is only as good for as long as the pen tip holds up and you have warranty left for a replacement of the whole pen if the tip goes. Now on to the positives.
I can definitely tell by using it that the newest Spectre X360 15" is using all 4096 levels of pressure sensitivity it offers. I could draw the finest of lines with it, and both the Surface Pen and the Bamboo Ink couldn't come close. No matter how light I tried I couldn't get either pens to match the range of pen stroke variance i was able to achieve with the HP Tilt Pen. The rechargeable battery is a huge plus, in addition to the fact that the charger port on the pen is USB C which basically future proof's it against having to carry multiple charge cable types.
The pen uses the eraser end as an eraser in every program I tried, which the Bamboo Ink didn't do (but the Surface Pen did). Bluetooth set up was a breeze and Windows Ink works well. The HP Tilt Pen didn't have as much pen jitter as the other too pens I tried (google AES pen jitter if you're unfamiliar with what that is), and produced the cleanest lines overall. It felt the best in the hand than the other two pens due to having a traditional round barrel, was significantly lighter than the Bamboo Ink, and besides initially having to adjust to the activation force required was the most pleasing to write/draw/paint with. The battery life was on the low side, I believe I got about 12-14 hours out of the first full charge, but it does charge fast.
Overall it's a great pen, one I wouldn't hesitate to recommend if HP gets the aforementioned issues sorted out. Until that happens, I see no other option but to keep the rating at one star due to the fact that even HP support has no idea about pen tip replacements.