If you have all that 2hp stuff already, and it works for you, great.

If not, be aware that you'll most likely use the rest of your remaining rack space (at least) just to space out the 2hp modules...they definitely do not fit in well next to each other. The ergonomics up front, but more importantly, the ribbon cables in back, quickly become a problem.

If you still want to try them, I'd recommend starting with a few first and seeing how you get on with them, before investing in the lot.

Def nothing against 2hp, I have used several, but imho they're best here and there spread amongst larger modules, versus packed in together.

Best of luck!