We have used DHL for all of our UK Wide deliveries for the last five years. As with any courier, there can be occasions where things go wrong, but DHL are amazing and in our experience, only 0.5% of our deliveries ever have any problem. If there is an issue, we have a no quibbles guarantee and will send out a free replacement.
For local deliveries, we use Three Bags Full – a lovely local company with a fleet of zero-emissions cargo-bikes, which we think are rather marvellous.