I guess the point I was trying to make is that Cubase has way more tools like the logical editor as one example, but yes, Reaper is more configurable in some ways that may matter to you. Btw, volume controls and routing is all in the left pane in the inspector in Cubase. I generally though use the mixer to determine peak levels and set the offsets in the channel strip pre-gain to match all my tracks at -12db as a starting point.
If you only spend a few minutes with Cubase, you may come away thinking it's lacking. You really have to dive in and watch Greg's tutorials. Almost everything I mentioned above you will not find in Reaper plus a lot more. They are really apples and oranges.
Reaper is geared toward the entry level hobbyist with a limited budget with it's $60 entry point. Cubase (and Nuendo) is geared toward the higher end professional composing market, think Hans Zimmer, and used by probably most composers for tv and film work. Pro Tools is also very popular with this group, especially if focused on audio, and Logic to an extent. You can google on these if you want the statistics. Cubase's strength is working with large arrangements of midi and has the strongest tool set for this. If you only do small projects or don't care about the extra features (or don't know what expression maps are), then Cubase is probably overkill for you.
If you are starting out with music mainly as a hobby and you have a limited budget, I would not recommend Cubase and instead have you check out CbB since it's now free or Reaper. Both are great products and if they have all the features you need, then you don't have to waste time looking elsewhere. If you want to compose for film or tv, and want to make a career of this, then Cubase or the other options I mentioned are almost mandatory.
Bottom line here is if you like Reaper, I can practically guarantee you will not like Cubase, and vice versa. Like I said, apples and oranges. Both are great products, but geared toward different markets. Pick whichever one (or the closest alternatives) fits your needs and enjoy!