So... way back when, I backed a product on Kickstarter that I think eventually evolved into the Baking Steel.

What I received at the time was a chunk of steel of an extremely unwieldy size and that honestly was really hard to keep from rusting. As I understand it, they have ironed out a lot of those kinks and it's a lot more feasible of a product now. All of that being said, if what you're wanting is to simulate that big pizza oven experience, then the steel is a great way to go, but you should realize that you're going to need to make the crust in a particular way and it's still going to be a pretty involved process. Personally, aside from the fact that mine was so large I pretty much had to use it on the grill, it also held SO much heat that I was actually a bit intimidated by it. Bump that thing wrong and you're getting a nasty burn. 2019 Baking Steel products very easily might be a whole different ballgame, so I won't say too much more in that regard.

Pizza stones, traditionally, are problematic because the oils from the pizza inevitably get into the stone and, while this probably isn't really a hygiene problem, it definitely gets unsightly as all get out. Also, because they're porous, cleaning them with soap can be a real challenge, because the soap gets into the stone and you'll be rinsing the thing forever trying to get that out.

Let me recommend an alternative middle ground - the glazed pizza stone. I own this one. (Not an affiliate link) You get all of the thermal conduction properties of a baking stone, but because it's glazed, the oils don't get trapped in the stone, and it's incredibly easy to clean.