It is a great sense of achievement knowing your product creates solution for
people to help them making better choices.
to help them making better choices
or
to help them make better choices
又请问
这句话是否有点绕口，或是可以怎么修改?
谢谢

觉得your solution helps them make better choices即可比较简洁(如果你不要拗口)，product本身就是一种solution

for people to help them... 很囉唆，又没指定特地群，直接 help people 就好a great sense of achievement 用这这里，有点不伦不类的，了解你的产品，成就达成？！如果是了解一个可以获得诺贝尔奖的产品，也许我会有满满的成就感 XD

It is a great achievement that your product helpspeople make better choices