I've owned my fair share of heating pads over the years and they all seem to heat up fairly slowly and then die sooner than I think they should, so I've gotten used to buying a new pad every year or so and I typically try a new brand each time to see what's out there.
This heating pad is noticeably lighter weight and thinner than others I've owned but super soft! Easy to lay on or place under a blanket without being awkward and lumpy. The box says it heats up in seconds, but I figured that was just marketing mumbo jumbo so I plugged it in, cranked it up to the max (6 out of 6 heat settings) and left the room for a minute . I came back not really expecting any change in temp yet and I was honestly surprised with how quickly the pad heated up! I'm not sure it hit the 149F claimed temp, but I don't really have a way to test that so I guess I can't refute it...all I know is that the pad heats up MUCH quicker and feels like it gets hotter than the various other heating pads I've owned in the past (maybe because it's thinner?). I would wager it actually gets hot enough to help with pain relief and expedite healing. Real heat! The various temp settings and timers are a must have for a pad like this, so everything you need is there. Lifespan is TBD, but if/when it heats its last hot (we use these a LOT), I'll be buying this one again for sure!
My only complaint is that I find myself having to wait for my turn to use it...because the wife and pets keep hogging it - everybody loves it!