Took me a while to figure out what was going on with my shock psi settings, but then I realized that this pump lets out a ton of air when its disengaged from the valve. For my rear shock, it was about 80 psi lost each time I disengaged the pump. This air loss adds a lot of guess work in your shock psi settings, and it makes it nearly impossible to set your shock to a particular psi with complete accuracy. I do not recommend this product.

It works great so far.

I like the brand, and how fast it airs up my shock. I used it for my middle shock on my Diamondback recall Enduro bike.

Nothing

Not sure on the accuracy since I havent been able to measure pressure against other pumps. I have noticed that it is pretty consistent as I can make changes to my fork then take a lap around the block and it will still show the same pressure. That consistency allows me to make small changes that I can notice when I ride. Pressure changes are easy to make as you screw it on, pump to add air, or push the bleed valve to lower pressure. The bleed valve was not overly sensitive either. All in all, for what I paid, I thought its been a good value (local shop wanted twice as much other brand name).

Perfect pump for my needs.

Exelente precio y funcional...

This pump is exactly what I needed to fill my rear bicycle suspension. Its light weight and easy on the hands to put down 220 Psi. Money well spent; on trail days it gets passed around, everyone will want to check their pressure and adjust.

Excellent value, easy to use, plenty of reserve pressure. Works as advertised to recalibrate my mountain bikes rear Fox shock and my Fox front fork.

Very happy. Works fine so far.