Just a couple more comments. I agree with the two people who said that YouTube videos are not a good way to judge a guitar's sound, because the type of recording, the style of the players, the speakers through which you listen, etc., will all affect/distort what you hear. I also noticed that the guys playing the Studio 3 guitars played a rather harsh "sul ponticello" most of the time, which is never the warmest sound in any guitar. As for Ramirez tweaking the build/bracing paterns of their instruments, I really don't know how much of that is just hype (not much more than words to make it look like they are up on the latest trends...), and how much of that translates into actually changing the sound of their guitars in any significant way.
If you really like the 3NAE, if you believe that it has "the sound" that you love and want in a guitar, and if you can imagine yourself playing it and enjoying it, then that's the one you should buy. You have three happy Ramirez owners right here in this thread saying, "Yes, buy that one!", but the more you seek other people's opinions, the more varied those opinions are likely to become, perhaps causing you to second-guess yourself, thus making it more difficult for you to make a decision (a decision which has to be yours alone). Some people seem to want to play every guitar on the planet before deciding which one to buy, as if there will always be a better one around the corner that they should wait for, but I think that that is another exercise in futility. If you have found a guitar that speaks to you, then get it!