I can't talk about the AM 2.0 but like I mentioned, I have the AP and love it! If you decide to go for expert infantry and centurion, you'll need to replace the mic tips on the helmet and build or buy the backs for the drop boxes on the belt, or buy new sets from somewhere like trooperbay. I would also recommend getting darker lens to hide your eyes better from light. Depending on your waist size, you will probably have to add a shim in between the ab and back plate to fill in the gap. Hope that doesn't sound bad cause it's not...just about any armor, you'll be making any kind of adjustment and there's plenty of help and advice here. AP seems to also have a less wait time then most. I had ordered mine in January and had it in March and was done with it in June.
Best thing to do besides asking questions is research, go through build topics and EIB / Centurion applications, see how things look to you.
Good luck....