I got mine on Sat. and have been running it for the last 4 days (no eggs). As pointed out in other posts the thermometer and hydrometer are useless. I had at one time 5 thermometers in the incubator and finally got one calibrated for use. I have a decent digital that is a cooking thermometer as well. It tested accurate with the 5 I tested. I use it as a spot checker. I used a cooking baster to add water. I filled the reservoirs and got a very high humidity reading 80+%. I'm going to go with minimal water. Not a dry Hatch, but Id like to keep the humidity in the 40% range. I found the incubator to hold a fairly steady temperature for the last 4 days. Spot checks have shown a range of 98.9 to 101.6. But I have been tweeking and getting used to a very touchy temperature control. So far, for the money, Id say the unit has worked in my expectations. I have some Turkey eggs coming this week. So, in about 30 days or so, the verdict will be in on this incubator.