Will I get more physically fit? I want to train to keep myself active and lose some weight.
Tang Soo Do is an excellent workout for building strength and endurance. However, the body will only adapt as much as needs to in order to perform the art. Your external appearance will not be altered very much, though you may notice a little more definition in your legs. It will not counteract a beer and pizza diet.
BTSD is composed of otherwise sedentary couch potatoes, Army Rangers, and everyone in between. Chances are, class will make everyone sweat, but the heart rate will not stay within workout ranges for a predictable period of time. One day may be composed of jump kicks on a target, while the next day we hold horse stance for half an hour.
Mentally, Tang Soo Do may help you work towards that goal of losing weight, making time for a workout, eating healthy, etc. As you see what you are capable of, those gruesome workouts will not be as intimidating.