A lot depends on the implementation and how well the devs that worked on your instance did their job. Some stuff they built into ours works great and I appreciate those things. A lot of it is really half assed, inconsistent with other parts, and people who process things are nitpicky as fuck about actually doing it if you didn't submit it just right (and they didn't bother to validate inputs to make sure you do). Overall it's slow and bloated AF when I'm trying to run reports which is mostly what I use it for.
My condolences. ServiceNow is straight from hell. It's ridiculously overcomplicated and the layout makes no sense and changes by the time you get used to its shittyness.
It will take literal months to get basic functionality implemented and it will never be pleasant to work with.