Abombs gains are what some refer to as "sloppy" or "wet" gains. You will get big but you'll look round and your face is probably always going to be red because of the excess water you will be carrying. As a result your BP will go up and if you are not carefull, you might also have some liver issues due to it's toxicity. If liver becomes compromised, you'll start to feel very lethargic and you'll even get a little depressed and become very irritable and sleepy, all signs of hepatic distress.
Once your cycle is over you'll lose most of your mass due to no more water retentiona and you'll be pretty weak.
My advice is to keep the abomb dosage to a bare minimum and don't go past 4 weeks.