thoughts on building 13 and 80 from current students?

hello everyone, im a new student starting a diploma of commerce at rmit this year, ive just been setting up my timetable and the two main building options i have are buildings 13 and 80. ive consulted a friend of mine who has attended the school and they said that building 80 is much better than 13, but if i book only building 80 i have a couple early morning classes id rather not do, so id like to get some current students opinions on if building 13 is as bad as ive heard or if it matters much at all.