I'm a freshman architecture student at Wentworth in Boston.
I guess it really depends on the kinda person you are. I much rather build something or draw something or design something as a test, rather than study a book and take a test. Not to say there isn't tests just more projects. Like everyone else said its a shit ton of work but if you like building stuff its really interesting stuff. If your in it for money I'd say leave because unless your high up in a big firm chances are you not making a huge amount. I like the hands on approach to learning. What made me decided in the end was walking through one of the studios where the juniors and sophomores were working, seeing all the models and drawing got me really excited about it and after that I was sure I wanted to go arch. With that said I know a lot of kids that switched majors after first semester and even more that aren't coming back next semester.
I suggest checking out the studios where the students work if possible and ask around about their projects that gave me the best feeling of whether I wanted to do it or not.