Great & reliable service!!
At first I was quite dubitative as their website seems to be external to the Eurostar's one. It is indeed a private external company (call it First Lugagge or Euro Luggage, it's the same) which is in fact in a parternship with Eurostar. I anyway finally jumped in and well it paid off as the service is efficient, fast, quite cheap (much cheaper than a moving company) and just reliable! Indeed, their website and the explanations avaialble on it are not the best and don't look very professional, but the people available on the phone are very kind and helped me with a lots of questions as I needed to send huge packages across the Channel. I used it two times, and the packages got delivered in the same day at the end of afternoon in perfect state.