The first one I received had at least three bad LCD elements (i.e. at least 3 screen characters could not be read properly). Everything else seemed fine, so I returned it requesting a replacement and not a refund.
Amazon is ACES. They immediately shipped the replacement, without waiting for the returned faulty item. They also provided a pre paid label for the Post Office.
The replacement product arrived a few days ago and works flawlessly.
Be aware that although this is an Indoor/Outdoor product, the outdoor sensor is usually inaccurate. Actually, the sensor is probably OK, but in our case it is placed on our Condo balcony, so the heat from the building affects the temperature. Also, the sunshine on a cold day (we live in very sunny Southern Alberta) warms up the balcony to a temperature much higher than the actual outside temp. I added this information as you may wish to consider whether or not you want to pay the premium for a thermometer with an outside sensor, given the inaccuracies. (Incidentally, I suspect this problem applies to all outdoor thermometers.)
However, we are pleased with our purchase.