So what grinder you choose should be shaped by what brewing method and then what roast level you mostly brew with. For you thats espresso and what, medium to dark roast?
I have a DF83, one of the early ones, but with the SSP High Uniformity burrs that are an expensive but worth while upgrade for light to medium light roast beans. I would not recommend these burrs if you prefer a darker roast, as those flat burrs I have are the exact opposite.
The DF83 produces great results but the early DF83s do need constant care over retention as they can get blocked if you don't. The DF83V solves a lot of the problem with my one, while still enabling a large number of suitable replacement burrs.
I would consider a similar price point conical burr grinder if you prefer mouth feel/more soupier coffee and plan on sticking with darker roasts.