Lil, I'm not great with heights (though short of phobic), but I honestly felt far more safe up there than in the car on the way home afterwards (and that's not a reflection on my better half's driving skills). The balloon people suggest you "give yourself up to the wind" (stop tittering at the back) and that's exactly what I did. I can't imagine a more exhilaratingly peaceful experience. Absolutely magical, I promise you.
Colin - are you home yet?
Malc, I wondered the same thing as they were unloading the basket from the trailer last night. I found out the answer at the end of the flight - anything more rigid than flexible wicker weave would have split wide open on the impact of the landing. Yes, the landing wasn't the peaceful part, but still exhilarating and great fun (and most of the other passengers were even older than me).
Do it, People - you won't regret it.
Happy Easter Monday!