some do every other day, but I personally love the ED.
you only need to do a cc a day - so you can either hit it all in one spot, or do half a cc/ml in each bi, or each tri.
there are a ton of places to do it - at least 2 or 3 in the delt, 2 in the bi, and 2 in the tri (you could argue more).
chest, quads, ass, and technically calves.
you will get some slize gains nearly immediately due to irritation and swelling, and then later will get great stretching and pumps there.
so I personally love ED and doing site injections - fina is cool stuff.
although I'm a bit bummed at seeing how many people on here are doing it - wish it were fewer so it would remain cheap and easy to get/make.