Hi, the atmosphere at Camp Nou can be very different depending what game you are on. The best I've experienced was when Barça won 4-0 over Milan in the Champions League (after having lost away). Also at El Clásicos you can feel the stadium vibrate, and when 98,000 sing the Barça hymn it's hard not to get goosebumps. But with that said Camp Nou is much more quiet than many other stadiums mainly because of traditions here you go to be entertained not to sing and here you applaud a good move or pass rather then sing and cheer the team. But I love it.
Life in Spain is fantastic, it's a football mad country and the weather is superb. Thanks for asking, hope you liked my answer!