It’s worth it for the dry storage and automatic loading alone. Printing multiple objects one after another on the same bed and same print job, but with different materials is also a great feature and huge time saver for small parts. For actual multi-material prints the best use cases are imo writing into the first layer with a different color or using 2 different non-adhering materials for a thin layer between supports and the part. All of these things require very little filament changes and significantly improve the usage experience.
Don’t dry filament in the oven. Simply put the filament spool on the print bed, set it to 60°C (PLA) or 70°C (PETG) and cover it with a cardboard box to trap the heat. Poke 3 holes in the box to lead damp air escape. Let it cook for 2-4h, then flip the spool and wait for another 2-4h. Store in air tight container with some silica gel to keep it dry.