This was our first visit to Sandringham. It's a lovely site, set in beautiful surroundings. The wardens were very helpful and we had no issues with how the site was run. We'd love to return here but it's unlikely that we will as there was no signal at all and extremely patchy Wifi, which was useless and difficult to access. We've been at sites in the forest with no signal before such as Clumber Park, which is very similar to Sandringham, however the WIFI is good at that site and this means that you can stay in touch with the outside world and make/receive calls through the WIFI. I appreciate that a lot of people wouldn't mind being "off grid" but we'd prefer to stay in touch with the outside world. Just having the option to choose would have been nice. Simple things like being able to check the weather forecast, listening to music or choosing a destination to visit would have been helpful. We found we had to travel to get anything like a decent service, unless we took a walk towards the Camping and Caravan site next door, where they didn't seem to have an issue. I hope the CMHC invest in this as it may put others like us off visiting what is a lovely place in a pretty part of Norfolk.