I suppose this response isn't particularly relevant, since my Rock Chucker is 26-ish years old and I didn't buy it as a kit, but here goes anyway ...
By way of background, I started out with a Lyman 310 "tong" tool (Gawd, did I hate it!), later bought a Lyman Spar-T for about $25, then my Rock Chucker for about $90, then finally bought my XL650 13-14 years ago. A couple of years ago I added a Harrell's press for precision work. I still have them all, although I don't use either Lyman any more.
Conclusion: with the notable exception of the 310 tool, they all work fine. I suspect that all of them, especially the RCBS and the Dillon, are overbuilt. The Rock Chucker will do you fine, and will be used by your grandchildren ... but so would a Hornady, Redding, or Lyman. Not so sure about a Lee, but lots of people use them.
However, as others have noted, while a kit is the quickest way to get started it is not necessarily the best. As you upgrade your stuff over time you will probably replace many of the kit items with items manufactured by another company ... but by then you will have acquired the experience to know what you really need. I think that BigJakeJ1s’s suggestion of starting out with inexpensive Lee equipment makes a very good point.
I have a fair amount of RCBS stuff, but for many applications I use Redding, Hornady, etc. And as a disclaimer I should note that all of my stuff is made in the USA. I cannot comment on the quality of presses manufactured in the PRC.
Hornady sells adapters into which you screw your dies to use with their Lock-n-Load system. However, they also sell an adapter that screws into a Rock Chucker into which you can then insert your Lock-n-Load-adapted dies. It makes switching dies much easier and is, IMHO, a necessity for any single-stage press which will accept the adapter.
The Rock Chucker is a good press, but it’s not “the best built press in the industry.” Kinda like an F250 vs. a deuce-and-a-half. While I personally feel that Dillon makes the best mass-produced press, Hornady, Forster, Redding, et al. make good ones as well. Among small press manufacturers, Neil Jones and Harrell stand out, at least IMHO