Hard to review something that's only been in use for a little over 3 weeks, but I figure I can edit it in the future if needed.Installation was easy - if you can handle installing any seat, you can handle this. The power source may be your only problem. My only gripe with this whole unit is the very short power cord (4'). I don't know of any home that has an outlet that close to the toilet, and having it that low in a bathroom I'm sure is against every electrical code out there today. I had to cut and splice a 5' extension to the cord in order to plug the unit in. Not a big deal for me, as I've been a mechanic, and home repair DIY'er forever. I also own a soldering iron, heat shrink tubing, and years of experience to make safe connections. Someone without this ability would probably have to have an electrician hook this thing up ($$$$$) - by law, I probably am supposed to as well ... but I digress.The seat heat to me is a gimmick - it works, no question, but I have no need for it personally (as a man, I only sit when I need to). I bought the seat mainly to surprise my wife. Very little difference between the temperature 3 settings, in my opinion. I did a current draw test on the unit after I installed it - it seems to work on a thermostat, as the initial wattage was higher than after it had been on for a while. It pulses in order to maintain temperature. I think the highest wattage I observed briefly was around the 55w range - it's never a constant draw, just like an electric oven, so you would never notice this thing on your electric bill. To me, the seat on low feels HOT - like it was painted black and left in the summer sun for an hour. My wife thinks its fine, but her skin feels hot to me, so I figure that's going to be very subjective. We left it on low the past 3 weeks, and everyone's happy - I get used to the heat after a while. We'll probably turn it off in the summer. Well, at least I will ...As a man, the LED light is fantastic for early morning bathroom use - no need to flip the light on and blind myself in order to make sure the stream goes in the bowl ... and not into the trash can next to it. It's pretty bright (see pic), contrary to prior reviews I've read, and it does stay on forever with no time-out. I thought it timed out on us at first, but when I turned the light on a second time, it stayed on - been 3 weeks now. Maybe that is by pressing the button a certain length of time? Not sure there - no mention of this in the meager directions.The soft-close seat and lid is also fantastic! Perfect speed - not too slow. Not having the seat SLAM down at 2am is great. If I had to nitpick at that, it would be that the seat itself doesn't sit flush to the lid when both are raised - it gives the feeling that it may fall ... which would create a very messy and infuriating deal, especially at 2am. Hasn't happened yet, but I hope that doesn't start to happen after a few years of use. I envision a clip to hold the seat to the lid when raised ... maybe I'll make something for that ...Can't think of anything else to say here. It's pretty fancy. Never saw myself spending this much coin on a friggin toilet seat ... but the things a man will do for his woman know no bounds. So far, I don't regret the purchase. ;)EDIT: 2/6/2021 - 4 years and one month of service, still works great! About the only complaints I have is the seat won't stay up unless you hold it for a while. Our floor is crooked in this 180 year old house, so YMMV. Also if the power goes out, neither the heat nor the light defaults to the "on" position. These are nitpicks - the seat is great. My wife couldn't live without it now, and comments when we use other bathrooms, LOL.