Just back from 4 nights to incorporate the Balloon Fiesta.  Can't rate this site highly enough.  Even though the site was totally full and the surrounding areas were thronging with noise, we still had a fabulous time.  The whole area around this site has something for everyone and the vibrancy of Bristol as a city is fantastic.  The balloons (when they eventually appeared!) were spectacular, the site is beautifully kept and you couldn't wish for a better situation directly out to the beautiful waterfront.  You just can't beat it - and long may it last!