What is the significance of a power hammer

I am currently an extremely ordinary person. In my personal opinion, this thing consumes a lot of money (not the active version of the hammer) and has a high maintenance cost. It is also easy to bully and bully car flippers. It is very frustrating to hit gastritis at an awkward 3 attack distance. After all, the knocking down rate of gastritis at an attack distance of 4 is extremely high, and it often knocks down when dodging and blocking at full speed. If you accidentally knock back gastritis, you have to take one step forward to get enough. If you hit gastritis and knock yourself down, you can't walk up for half a day. It's even harder to get up if you encounter two or more gastritis, and you basically keep falling to the ground.
If it's a monster below level 8, using a hammer is completely wasteful. Barrett's critical hits of over 800 to 1200 damage are sufficient, and no 7th level monster can withstand 10 shots without dying.
Weapons can only carry 3 types, and Gatling is a must-have for sweeping below level 7. It is also very easy to take one or two shots when encountering Barrets such as decaying wood. Barrets are used to serve at level 7, while 8th level monster car flippers are very easy to hit with hammers. However, for gastritis, it is often felt that hammers are not as effective as Barrets.
I don't usually wear nets and grenades myself, which feels like they occupy the weapon space. Previously, it was Gatling, Barrett, and RPG. With the Hammer, I replaced the RPG with a Hammer, and it didn't feel as cool as before (except when facing a car crash bug).
At present, there is no Gaussian rifle. It seems that this is the weapon of the king. How can a hammer be used to demonstrate its value?
Also, is there currently any way to obtain the Gauss and Power Hammer for the Year of the Rabbit event version? The regular version of the repair feels like a big pit.