Efficient, reproducible, cheap and intuitive.
It is very convenient to use, with a built in protocol, I don’t need to scramble for that tissue and a pen to calculate. Significantly improved ‘quality of life’ when compared to the haemocytometer based cell counting. Even better for record keeping since data gets stored in the machine available to be retrieved when mishaps (spilled HCl on your labnote record) lead to loss of data. Best thing is the time it saves, and it is cheap.