my wife and I did a full year of Krav through those guys. mostly in 2007 into 2008.
I thought it was fantastic. And really feel better with my wife walking anywhere, etc...
It does however depend on what your after. You WILL get in much better shape as you do kick boxing style offensive moves... lots of punchs/elbows/knees
then you do alot of self defensive sorta stuff like breaking outta bear hugs and chokes, etc...
you do some ground work but not alot
one of the greatest things it teaches is aggression... once you KNOW someone is going to be attacking you, and you have NO choice but to fight, you've exhausted talking to the person, running isn't an option, etc... you literally shit kick the person.
you make sure the person is not getting back up to stab you in the back as your high tailing it outta there.
Theres no pussy footing around... groin kicks are taught, collarbone breaking hammer fists and lots of other very very painful things
we just got tired of going... twice a week for a year, i sorta grew bored and it was like a chore to keep going... so rather then paying big bucks and not going, we just finished up the contract and never renewed.