Go for it Speicher!!
It really is a fantastic experience. We got married in the USA, and my wedding present to SWMBO was a champagne balloon flight over the Napa Valley.
An incredible experience

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It was a very early morning flight so the light was fantastic. Also, there were about a dozen other balloons taking off from other locations nearby, all travelling in a similar direction but at different altitudes. A wonderful sight.
I think the problem with flights in the UK is that because the weather is so variable and unpredictable you will probably get a lot of postponed flights before actually going. In California, the weather (and wind direction) is so predictable that the pilots know pretty much the direction they will be going - and even where they will land. They rarely have to postpone flights.
I too live in Worcestershire and quite often in the summer we see balloons pass by. I think they fly a lot from around Stratford? It is a great way to see the countryside at a leisurely pace - you will enjoy it.
Gary.