It's a different type of riding. My normal bike is enjoyable because I like riding it and have fun trying to go as fast as possible. The recumbent is fun because it allows you to go fast straight, faster then a normal bike because you can put your back into the seat and just press out to revolutions. Plus, the seating position is so relaxed and everyone waves to you on it. On my normal bike, no one notices you so it's easy to just zip through stuff.
They are two opposite rides that are both enjoyable