I'm partly just posting this to get some more content going here...
...but I've been using Rider for the past year or so, and I'm not sure I can say it's better than Visual Studio.
I find anytime it comes up it's all praise for Rider (including the debugger, which i find to be crap)
The Pros:
--IdeaVim is better than VsVim
--Feels a bit snappier
--The find in files pops up in a dialog box with "display as you type"
Cons:
--I really don't like the debugger layout. It's not customizable at all and I find I'm going back and forth between tabs all the time
--The debugger also doesn't have a second watch window, which blows my mind. (I often want to compare the state of 2 variables side by side, which is a huge pain in Rider)
--It has a bad bug where sometimes it won't recompile my changes, so I have adopted the workflow of always deliberately building before debugging, which is annoying.
--Doesn't work with WinForms
I just always see comments about how much better Rider is. It has some advantages, but it has some massive flaws IMO too. I'm not sure what I'm going to use going forward.
Right now I'm developing in rider and debugging in VS.