It was easy to use for my purposes I needed it mostly because we had so many clients in different states who were willing but could not afford tests done at our lab here locally! They made sure that they sent me an email when their system crashed every time something went wrong with them which kept us from being left behind by other labs since everything is backed up constantly!! So far there hasn't been anything i don;t like about using this product. The only thing would be having more people trained how/when things should work etc. This will help keep you ahead all throughout your testing process if used correctly. !