The powerbank is rather large, while other companies offer smaller and more powerful alternatives. Advantages include that it doesn't get hot, is relatively compact, and features all common ports (USB C, micro, Lightning). Disadvantages are that the powerbank charges extremely slowly... from 0 to 100% takes over 8 hours via USB C. Phone charging is also very slow (charging an iPhone XR from 20% to 100% takes approximately 3.5 hours). The material quality is poor, and it emits a squealing noise when charging.