I have posted fairly extensive information on Sacramento International Airport / KSMF / SMF, both the Terminal A (ex-Southwest) and the new Terminal B (new Southwest terminal and gates B-12 through B-23 in: Sacramento International Airport / SMF - the definitive thread.

Given about 55% of SMF's flight activity is generated by WN, fully half of the Terminal B is dedicated to WN, and I do suspect WN flyers will be pretty happy with the offerings in the new terminal. The "snowflake" seating has both powered USB and 110 VAC outlets for power, and the WiFi is free; there are some decent restaurants, including Esquire Grill (props for maintaining downtown prices, and offering delivery to gates by iPhone app.)

The Terminal A was not broken, as El Cochinito says - the old Terminal B was very much so, a veritable pit for AA, AS, CO, AM, B6, UA, etc. users. Years ago, they began planning - Terminal A was built first, Terminal B later (they came in on time and under budget for such an ambitious project, planned while traffic was increasing annually and we were in a boom time- $1.08B instead of budgeted $1.27B.

I also have misgivings about the Bombardier People Mover, but they do have the option to gang two cars in tandem and add doors with faily minimal difficulty. I gotta "LUV" the art at SMF...