People who have owned their grinder 5+ years, which one do you own, and if you would upgrade, what to?

As title. I am potentially looking for a grinder upgrade for in the future. I want a good grinder that will last. I dont want to spend tonnes of money for marginal gains, just something that will grind good espresso and is semi affordable (would under 1k work?). A friend recommend a Eureka, unsure which one. What are your experiences?

Currently own the df54. It does the job but I'm not sure if it's holding my shots back, and if it is, to what extent. I'm just assuming it is, given its relatively low price point.

Thank you.