We watched the first set go down (with about 200 other people!) from the handy little hill on our estate. You could have got a little closer, but for more a lot of effort and not as nice a seat. It was great fun and quite a spectacle - thouroughly recommended if you are in the area!
I MIGHT pop-up to the Clumps for these ones - it's a very scenic spot, but quite a way further from the towers. Will monitor the forecast ...