Will work, but not to specs
When it arrived, cool, until I opened it, the size is all motor and door.  Still fits two insulin pens and three insulin vials, enough for 20 days + back up.  Did not check assume 6 vials which is a lot of insulin.  Tested it by putting a known good digital thermometer in it and powering it up.  Display always read 8 degrees off thermometer inside.  Inside house temperature set at 72 degrees.  While powered, set to 36 degrees and outside only reached 46 after full charge (I left it for 24 hours) inside showed 52, consistently off 8 degrees.  Unplugged before going to work, checked before leaving, outside 39, inside 47 ish (don't remember exact).  Checked when I got home, 12 hours later, and battery has ran out and it is at 75 inside, possibly over room temp, still set at 72, but near window, but not direct light.  Will work for the Cruise I am planning, but not up to specs.  Still worth it to me.  I will use it.
Rating: 3 stars