Great replacement for the stock gimbals
It is a simple job to remove the stock and put in these new replacements gimbals. There are several YouTube channels offering advice on that process. View a few of them and then it will all make perfect sense. The hall effect sensors will be a bit more reliable than mechanical wiper style hardware used in the stock gimbals. A dirty wiper from regular wear and tear could introduce noise into the signal over time, hall effect sensors do not have that issue. The new gimbals have a softer end stop and a more precise feel based on the slightly more attention to detail in manufacturing. I would say the stock gimbals okay and the new gimbals are at least 5 times better. It took me about 20 minutes to remove/install and another 10 to get my feel just right then calibrate. The feel of the gimbals construction are more solid and the tuning of the position and throw of the sticks are part of the install process. This tuning will help you learn a bit more about how you might feel customizing the way they will work for you. After you have completed the installation be sure to run the calibration of the new gimbals in your transmitter.