Associate Editor applicants have rated the interview process at Lucror Analytics with 3 out of 5 (where 5 is the highest level of difficulty) and assessed their interview experience as 100% positive. To compare, the company-average is 100% positive. This is according to Glassdoor user ratings.
Here are the most commonly searched roles for interview reports -
Rigorous—several rounds of screening and assessment, followed by interview stage I presume. Process was very professional on the whole, but some time investment is to be expected if you do apply.