A very useful instrument in our high throughput system. LUNA-II greatly increased the processing time for cell counting in our lab. It has excellent reproducibility and accuracy. The instrument is straightforward to use and the provided software is self-explanatory. I wish there was some protocol or user manual on the product page. Although it was not extremely hard to figure out, being such expensive piece of equipment, it would be better if the user had some idea how to use it before turning the instrument on. Overall we are extremely happy with our purchase and definitely recommend it.