The halo sustainable Resort in Karimunjawa boasts a superb and sophisticated exterior and interior design. The overall ambiance is enhanced by great food and commendable hospitality from the staff. However, a notable downside is the low-hanging wooden ornament above the bed, posing an inconvenience as it can easily be stumbled upon and it's important to note the potential safety concerns, such as the absence of handrails on the stairs. These issues might need attention for a more comfortable and secure stay. Despite this flaw, the overall experience remains delightful.