I had a flight last april - actually booked to fly the previous summer but it kept being cancelled. there's a time limit on the booking and mine expired, but I persuaded virgin to re-activate it because of the number of cancellations.
great flight (over oxford) but the balloon landed in a field near aylesbury 2 miles from the nearest road, getting back was a bit of an epic! that meant the champagne-supping finale was a bit rushed and nobody got their certificates or photos.