I used a LG for years with good success. The people that say you have to monitor them are correct. The biggest problem with a LG is that it needs to stay in an area that has little to no temp variation. Basements are best. The LG has done well for me in the past but this year I bought a Hovabator genesis 1588 and like not having to check temps. Now I use my LG as a hatcher. I bought an digital thermometer at wal mart that I could read without opening my incubator. It helped quite a bit. Also make small adjustments and wait at least 2 hours before adjusting again. Also I do not adjust temp in the 1st 2 days until eggs are up to temp unless temp is too high. I run the still air LG at 100 to 100.5 at egg height.