"Does what it intends to do reasonably well" is going to be widely subjective, depending on whether the user's use-case is statistical/life-sciences vs more general purpose coding and relying on many packages; prototyping/experimentation vs production code; whether the user uses base-R, or tidyverse/data.table, etc.
Please don't cross into personal attack or name-calling, and please especially avoid this sort of tit-for-tat spat with another user. It's way against the site guidelines and makes for boring reading.
I know it's not always easy to extricate oneself but it's helpful to remember that the only way to 'win' is to stop.
"Does what it intends to do reasonably well" is going to be widely subjective, depending on whether the user's use-case is statistical/life-sciences vs more general purpose coding and relying on many packages; prototyping/experimentation vs production code; whether the user uses base-R, or tidyverse/data.table, etc.
Here are two of those many posts:
* An opinionated view of the Tidyverse “dialect” of the R language (July 5, 2019) https://news.ycombinator.com/item?id=20362626
* The R programming language: The good, the bad, and the ugly (epatters.org, 2018) https://news.ycombinator.com/item?id=35571659 -> https://www.epatters.org/post/r-lang/