I'm pleased with my 4239. When my other cameras switch to night mode this one still looks like its noon outside. Went with the bullet version same as the OP's. All stock settings I believe. Haven't gotten around to tweaking it much.
Regarding mounting of a 4239, would it be a good idea to mount it on an exterior wall with no protection from rain? The Ethernet cable can be routed directly into the camera from the wall.