Is University worth buying?

Regarding the gameplay, it adds a new challenge. I managed to get two Sims (separately, I have no idea how people get more than one Sim through Uni!) to get accepted for a distinguished degree and graduate with honours, but time management is key! To me it is a welcome break from regular gameplay. I really like that they added the roommate system. I have only played with it in dorms so far, but I am looking forward to exploring it further outside of Uni.
Regarding added stuff, I am very impressed with CAS. There are already several items that I cannot do without anymore. BB is also quite good, I especially like the new posters and tiny plants.
So I definitely think that the pack is worth buying.