I read about this device so thought I would give it a looksie.  After reading the reviews and Q and A, I decided to purchase notwithstanding the steep price for a toilet seat lid.  It arrived and my 16 year old son installed it immediately.  So, easy to install.  We then immediately turned the heat on and it instantaneously warmed up and was sooooo nice.  The light works fine too.  It is a product that I already enjoy and know I will enjoy for the foreseeable future.  I read the Q and A which states that can leave the heat on 24/7 and the light too but by doing so, the LED bulb’s lifespan will be shortened.  So, the only complaint or constructive criticism I can offer at this time, is that the light feature be triggered via motion perhaps - automatic turn on - and then a turn off 5 minutes later upon no further movement (something like that).  Otherwise, I think I will be very happy with my purchase.