I would recommend you trying dirt on a smaller tank to see how you like it before moving to your "feature" thank. I personally did two smaller 5g tanks with dirt to see how plants react and grow over 2 years before I put it in my 27g cube.
To what Elledee pointed out, if you are the type to change things up often or have to move things around, dirt's probably not for you. Same with what Preeths said too, if you're collect dirt from your garden there might be unintended issues with it. However, as with branded substrates, there are branded dirt that i've seen lots of people use and the issues around that are known. Such as Miracle grow organic potting soil
seems to be the most mentioned. Having said that, it's not like others haven't just gone out in their back yard, dug up some dirt and had nothing but success with it ie MD tank's channel for a more famous example.
Dirt is a preference just as high tech vs low tech and all the other things that come with this hobby, until you tried it, you just don't know. This to me is a preference topic, you're going to get just as many thumbs up as there are thumbs down, but hey, try it without livestock "fish" and just grow plants with it for a bit. If you don't like it, you can always rip it out later and replace with other substrate. Cost wise it's probably cheaper to start with dirt