On the Web, usability is a necessary condition for survival. If a website is difficult to use, people leave. There are plenty of other websites available; leaving is the first line of defense when users encounter a difficulty. In order to make your website successful you need to raise its level of usability.
I will rate your website based on detailed usability checklist which includes ~200 questions about every important aspect of the site. Result are given as usability indexes (%) for every analysed part. You will also get answered checklist as well.
Here is a partial sample report
M. Sc. in Mechanical Engineering.