Can you appeal property taxes yourself or is that realistic if you hire someone?

I always assumed property tax bills were just…final. Like the city assessed it, that’s the number, move on. Recently, I noticed that's not true at all. Apparently, you can appeal your assessment yourself without hiring a consultant, and the process isn’t as buried in paperwork as I assumed. I started looking into comparable homes in my area and noticed some houses on my street that are pretty similar to mine are assessed lower which made me wonder if my assessment is even accurate.

Has anyone here gone through a property tax appeal? Did it make a meaningful difference and was it worth the effort? Trying to figure out if this is worth pursuing or if it’s one of those things that sounds good but goes nowhere in practice?