Who is experienced with usability testing? I need your feedback!

Hi!
Among the features of my project, there is a free tool for usability testing. My team has some doubts about its complexity. So, I would like to ask for some external opinions. If you need to test some landing page or new product this task would be useful for you and us ;)
Please use the invite code Q9LB3UXT to sign up (our product is in closed beta) at oneglobus.com and go through the testing flow. I will not give you any additional information because it may be a hit ;) and we need "pure and fresh" feedback.

This would be interesting for startups, UX/UI Designers, Product Managers