Its intense in that you have a lot to learn yeh, but not to the level you dont have a social life or have any time to yourself. During the university year you always have something to be done really, but sometimes you have a lot of stuff and are in the library all day every day for a few weeks at a time. When you go on placement you're working full time and may or may not have a bit of work to do some nights - depends on your supervisor!
It depends on who you are as well, some people stress about things more than others.