I recently sent my Hartke head to Wales with the Post Office / ParcelForce and, I believe, it turned up safe and sound. That was a fairly large, 20¡odd kilo parcel with 150 quid insurace (undervalued slightly to get a cheaper postage rate), and it cost 21.39.
Good value, I thought, and it turned up on time, tracked, and seemingly in good condition. Jase can give you the story on how it arrived, I would think, but from my end I have no complaints. One thing worth noting, however, is that the 30kg individual parcel weight limit drops to 15kg if you take it to the Post Office rather than have it collected.
+1s all round, I think.