This is my second 30” smoker and this time I went simple, no window, no temperature probe, no Bluetooth remote. This unit meets my needs by holding a reasonable temperature. I use an external temp probe. The window just get covered with smoke and is useless with in short period of time. If all you need or want is a unit to smoke or hold a temperature for a pried of time, this gets four stars. It would have gotten five stars if the packaging would protected unit in shipping.