I'm on a cycle of aztreonam, cefepime, and meropenum. I do two weeks of one, switch to the next, ad nauseum. Really, don't wish it on yourself- it's a last ditch effort when the oral antibiotics stop working, and you get high fevers when you're off of IVs.
I can't complain because I do feel pretty good- I can still do a lot. But it's frustrating to know that if I go off for more than a week, I'll be sick again and unable to leave my couch.