I don't like the
default setup, nor the rpg-menu of any rpgmod I've seen theese days.. They are missing some of the nice features that cssrpg have, the
"impulse bug" for instance. Impulse was intended to make you run faster when shot at, and it does, in addition it "gives" you ammo when you get shot at so you can spray endlessly.. It's really fun to have that option combined with the
CSSRPG-XXL update 
Anyway the menu easy to get used to and you have the main upgrades you will need on the first buy page, plus the buy\sell menu closes even if you don't have enough credit to buy it (BY DEFAULT).
Also i remember the frostpistol, icestab and longjump was much more smooth and controllable than any of the rpgmods out there have today..