The town square is only a 5 minute walk away and has food & wine shops, art galleries, restaurants, post office, local buses. There is also a car hire facility. Spello is a good base from which to explore Umbria with towns like Foligno, Perugia, Assisi, Bevagna etc not far away.
In summary I cannot recommend Casetta del Lunario highly enough. It has a charming and inviting atmosphere, fabulous views, gorgeous garden & terrace with thoughtful inclusions such as a a great selection of shopping baskets to choose from on your way to the village.