Margin investing? Thoughts?

How many people have successful used margin investing to further fatten their pockets? I’m really not afraid of borrowing because I know I’ll have the work and funds this year to pay it back. Obviously I can’t tell the future but the market is looking juicy for buying opportunities and I just don’t have the money at the money. I’ve seen people take risk like this and it turning out to be a great decision. What do you guys think?!