For what it's worth, Lemmy and kbin are very much the v1 of the fediverse, the UIs and servers are improving quickly as they break (just like how reddit was notoriously down all the time years ago).
After you sign up you don't have to care much about servers or instances, just tap "all".
I don't think it will be long before someone comes into this space with a good UI and the community that reddit just marooned and turns it into gold.
If you're looking for a one stop reddit replacement you're not going to find it. As such, I don't think selling the fediverse as "reddit without the BS" is an honest or even reasonable comparison.
You're going to have to stick with reddit and give replacements a dew years for the dust to settle before asking that question.