I find this pad too thin to be really comfortable, especially on hard ground or sand.
I got it because I like to travel light and was impressed by it's small size and low weight but I have found that the extra comfort makes it worth taking the regular Thermarest most of the time. It is OK for backpacking but in a boat the extra couple ounces that the bigger version weighs make no difference.
Thermarest also seems to have made the stuff sack a bit too small, it's hard enough to get it in there at home but it's absolutely impossible with wet fingers or if it's damp.