I think for $10 it is worth it. My kids did it (with a Groupon) and enjoyed it. Great views and they took some nice photos. It's a nice add on to a day or time at Disney Springs.
I agree with @HopperFan - fun and worth it for that price. We used CAA (AAA) and got a good deal. I will say that we attempted 3 times before we could ride it. It was too windy the first two times we went to ride it, so if you go and it's open, you might not want to risk riding it later as it closes for safety reasons.
My daughter and her friend went on it at night. I think it was 12 with dvc discount. They loved it. I’ve been on real balloon rides so this one holds no fascination for me.