I much prefer it to driving; you get to experience the open air; it's exciting, there's no traffic and it's often faster than driving. If I look at the money I've saved in gas & parking, my scooter has paid for itself almost 3x so it's cost-efficient too.
I heartily recommend that anyone with a commute of 30km or less per day try one out. Especially if you live in an area with good cycle-lane coverage. It really hits that sweetspot of efficient, enjoyable and cheap transportation.