its easy to create Test, and the most important thing is implementing the test as because the platform has free customized questions/codes related to each skill with all kind of candidate since from beginners to professionals. i am very frquent user of this platform as a recruiter, also there are couple of more best features like AI Plagiarism Detection, Tab Proctoring, Photo Identification, Copy/Paste Tracking, Image Proctoring to make recruiter life very easy to assess candiate genuinity. also this platform provide API tokens to integrate with any major ATS. You can expect a quick and express customer support from these guys.

I like the flexibility in the platform: the ability to define your own engineering projects with custom environment and custom scoring scripts.

I consider the platform to be very intuitive and full of possibilities. The entire creation process is very detailed and well guided. Speaking of implementation, it's extremely simple to create and publish a hiring test, with different approches. Also, the customer support is a highlight - I really appreciate it. Hackerrank is one of the tabs always open in my browser, I use it almost daily.