is ISFShax beginner friendly for flashing a us nand on a japanese wii u

is like the "soul" that was in the older tech , like these were out for a reason so i like to tinker with them so much and collect them but i dont like killing my consoles cuz of modding , i want it straightforward , i didnt know that when i started looking for a good condition wii u so i decided to order a wii u from japan "a japanese wii u to be exact" , it actually still at the shipping process , the worst thing in the japanses region that u can ABSOLUTELY NOT change the language to something readable, so i learned about some sort of patch that can replace the text from japanese to english but the some japanese that written on the assets of some apps wont be english , i prefer to change the wii u's region to europe , i tried giong into youtube but nothing seemed to be useful , any help