Ask HN: Do you use kettlebells

I'm 64 and finding that I need a whole body experience at the gym. I have foot and ankle problems and can't jog. I take a beta blocker so getting my heart rate up is hard.

I've just started doing kettlebells and think this might be the answer. But I only have used them two days in a row.

What are your experiences with kettlebells? What is your age?