George Foreman panini grills are offered in compact models intended for about 2 servings and larger models sized for roughly 4 servings.
Yes. These models have an adjustable hinge that lets the top plate be tilted to drain fat or laid flat so you can press panini and toast evenly.
Wattage varies by model. Examples from product listings show models around 760 watts up to about 1000 watts, so power use depends on the specific unit.
These grills are designed for panini and toasting but also handle a range of grilled foods such as steak, burgers, chicken, vegetables and toasted sandwiches (toasties).
Cooking surfaces are listed as aluminum, while the appliance exterior/body is described as plastic in product specifications.