Welcome to the ISU family - but don't let anyone scare you about the architecture school. One of the best public arch programs around. UT has a pretty great one too - what made you choose between the two? You will put in a lot of time at studio - it's just how it is. Always be producing - sometimes I felt the profs were just putting a war of attrition upon us, to see who washes out (250 in "pre" arch my first year, only ~55 when I graduated. But the 5 yrs in program goes by fast... and I loved it, and now live in Dallas doing architecture (good time to be an arch student, terrible time to be an actual architect by the way!!!).
The weather will shock you, true, but everything else is pretty nice.