Hotel operations vary in size, function, complexity, and cost. Most hotels and major hospitality companies have set industry standards to classify hotel types. An upscale full-service hotel facility offers luxury amenities, full service accommodations, an on-site restaurant, and the highest level of personalized service, such as a concierge, room service and clothes pressing staff. Full service hotels often contain upscale full-service facilities with a large number of full service accommodations, an on-site full service restaurant, and a variety of on-site amenities. Boutique hotels are smaller independent, non-branded hotels that often contain upscale facilities. Small to medium-sized hotel establishments offer a limited amount of on-site amenities. Economy hotels are small to medium-sized hotel establishments that offer basic accommodations with little to no services. Extended stay hotels are small to medium-sized hotels that offer longer-term full service accommodations compared to a traditional hotel.