Anything to get you moving is a great start, especially if you've led a relatively lethargic lifestyle.
Yeah, this is good, sometimes i add it to my walking routine.i use magnetic 1,2 kgs hoop. Good for flatten stomach.
I just learned how to hula on pintrest. I took forever to figure out how, but the hula instructors on both tutorials said that hula burns about 600 calories per hour, which is a lot and it also builds up your ab muscle. Good luck.