I did kali for about 2 years starting at age 14. Though my instructors were versed in boxing so we did a few boxing drills aswell but as far as self defense application it wasn't all that great.
I had a fist fight at school and got beaten, held my own but kali didn't really prepare me for the situation. Had i been at the local pcyc doing boxing and sparring every weekend i would of been more prepared.
One thing i will say about kali is some of the stick drills are really great for developing hand eye co-ordination and upper body co-ordination. Drills such as heaven 6, high low high, and earth 6.
When you do these drills with a partner and walk around the room and circle around each other you get a good eye for peripheral vision and general co-ordiantion. It translated over to my boxing pretty good, it didn't take me that long to pick up basics cause i already had that co-ordination. Another dude that attended kali with me and also did the same boxing class as me picked things up fairly quick aswell casue of the co-ordination he gained from kali.
Also the drills are really fun and a good way to mix things up. Not to mention if you have a sizeable Filipino community you'll see some hot filipina's at the class :icon_chee