BUY THIS. I bought this for a 14 year old boy that is trying to train for his tennis team tryouts during a time where practices have been cancelled. Let me tell you, it’s 100% worth it. He probably goes out and uses it 5+ times a day and will do as short as 15 minutes because it’s so convenient. He doesn’t have to go to the tennis courts, and he doesn’t need to find a partner, and he still is getting some practice and being active. In a time where we’ve been in the house for months, this was a great investment.