I have been very satisfied. I bought it for the first time for a 10-day camping trip and used it under a self-inflating mattress (Bigfour Comfy Plus 5cm) that I had as a "base mattress". For a person weighing 60-70 kilograms, it is the best I have seen and I don't even need to discuss its value for money. The fact that it folds up so easily makes it very practical, as the ones that roll up don't spread out as well in the first few days of use (every time) and I believe it will take a long time to wear out. The air chambers it has are great for easily adapting to rocky terrain, and the width is just right for most single mattresses I know; it's just wide enough. I highly recommend it!