They're cool Harry, I'm a fellow Cardiffian, although I live out near Bridgend. My friend showed me one done on his camera from the London Eye and its cool. The cameras with these stitchers on work really well.
Did this of Pencoed after the snow in February and took the other from Exmoor of the South Wales Coast you can see the lighthouse at Nash Point near Llantwit Major you can also just see the windmills above Pencoed. The full files were too wide to submit!
Useful tip for doing these panoramic shots if you don't have an auto stitcher and you're going to join them in photoshop or the likes - use the zoom so that you're over 60mm focal length, about 1.5x - 2x zoom in todays money. This way you won't experience as much distortion, as if you used the camera at it's widest setting, you'll never get them to join convincingly. Sure you may have more photos to stitch but the end result will be spot on!