The user received a Breville Smart Oven Air Fryer Pro and is seeking guidance on its effective usage. They are particularly confused about how the preheating and timing functions work. The user questions whether food should be placed in the oven before or after preheating. They provide an example of baking frozen cookie dough, noting the need to adjust temperature for convection but struggling with timing. Another example involves heating frozen tater tots, where instructions suggest a specific temperature and time for air frying. The user is unsure if these instructions account for preheating or if they should wait for the oven to preheat before starting the timer. They are overthinking the process and avoiding using the appliance due to this confusion. Following their post, the user found information suggesting the oven's design is flawed, requiring manual timer adjustment after preheating. This design issue is a source of their frustration. They are looking for general rules of thumb and tips for adapting recipes to this specific oven model. The oven automatically preheats, then starts the timer countdown once the set temperature is reached. This behavior leads the user to believe food should be added during the preheat phase. However, they are uncertain about how to adjust recipe timings accordingly. The user acknowledges they might be overthinking the appliance's operation. Ultimately, they desire clear instructions and practical advice for using their new Breville oven confidently.