First off, welcome to the FTF community. When you get a chance, head over to the new member thread and introduce yourself to the gang.
About all I know about CAI Garands is that they have a cast receiver. Personally, I don't care for the idea of a cast receiver. Just my preference.
You can get a real G.I. Garand from CMP for just a bit more money.
I have a '43 Springfield Garand that came from CMP and it's an outstanding rifle. If you can, buy the real deal. You won't regret it.
If ye love wealth better than liberty, the tranquility of servitude better than the animating contest of freedom, go home from us in peace. We ask not your counsels or arms. Crouch down and lick the hands which feed you. May your chains set lightly upon you, and may posterity forget that ye were our countrymen. ― Samuel Adams