I originally wanted the 15" but was afraid battery would not last me more than 8 hours which is critical for work sometimes. Some reviews of the 15" are saying it gets 7-8 but after reading the Ars review of the base model and seeing it gets 10 hours no problem with medium workload I am now back on the fence. My normal workflow entails wifi, outlook email, cord to rdp into remote servers (heavy), iterm for also ssh remote, and office. I also use viscosity to log into VPN. Does everyone think I can get 9 hours with this workflow on the base 15".