I started it once when I was super under-utilized in my day job and was looking at ways to stay stimulated.

I figured I'd start out getting approved as being able to do useful work in a particular CMS in a particular language (Where I expected the acceptance criteria to be low (and the size/complexity of engagements to be low) -- customize a listing of content, build a custom form, customize how content is themed, etc...

After typical screener quiz etc. and a Skype interview, there was a take home challenge that resembled "build a minimalist custom ERP with <such and such acceptance criteria> and <such and such custom business logic> shoehorned inside of WordPress" , probably a good 20 hours of work minimum if you were using an MVC framework with decent developer experience, let alone trying to bang it together inside a CMS without much support infrastructure for such things.

I declined to complete the challenge.

I might have had better results going straight for a language + framework actually suited to creating custom apps, but it didn't give me a great impression.

I declined to complete the step where interviewer was about to watch me coding online almost the same quiz they gave me on the previous step. I have just rebelled inside and said "no thanks" almost automatically.

I have felt myself like inside some stupid adult movie.

Several weeks later I have found a freelance gig (which later turned to be almost 2y job) and the business owner told me he have approached Toptal before me and was shocked by their attitude, fees and especially by something around $50k coder take-away fee. Definitely not freelancing.

I did, it was the default coding challenge you find in other companies, with a take home project for the last project. There's 4 steps, which can be time consuming.