Happy Nails & Spa on Alton Parkway in Irvine is a highly recommended salon. Clients praise the friendly and professional staff, including the manager, Tina, Mi and Mai. The salon is described as being run smoothly and professionally, providing a wonderful and relaxing experience. Customers particularly appreciate the excellent service, especially the pedicures given by Mai, who is kind, gentle, and skilled. The salon is also known for its great neck and shoulder massages during services.