Hey,
I am also an GSAPP MUP newly admitted student. I accepted the offer. Some facts that I would offer:
1, The school is very good in architecture, so the planning program should not be too bad.
2, The school is based in NYC, which should set a good ground for both learning background and career prosperity.
3, You can take courses in almost all other departments/schools excluding the teacher's college.
4, It is an old program.
5, It is Columbia University!!
6, Some stats about job finding: http://www.arch.columbia.edu/files/gsapp/imceshared/cce2119/Public_Information.pdf
If you are interested to get in contact, email me: mrsonysun@gmail.com
L