At first this product performed well as a personal cooling system. The controls are simple and effective. Topping up the water is quick and easy. USB C power supply makes this a great portable unit. The fan is ‘relatively’ quiet. Overall this is a very considered design.However… The indicator light is too bright if planning to use this at night. I’ve covered mine with insulator tape and it still shines through. The backlight is very useful, but it is blue and I would have preferred red, again for night use.Most importantly, delivery of the unit is slow (although this may have been exacerbated by Covid19). Also after 3 weeks of frequent use, the filter began to smell and shows clear signs of bacteria growth on the back edge. Replacement filter cartridges take almost two weeks to deliver and the total cost (with delivery in the UK) is almost half that of the original cooler. I’m not sure it’s worth further investment and may just buy an alternative.