Cherwell Software Sr. Software Engineer interview questions

Contacted by recruiter within days of applying. I then spoke to one of their developers. Everybody couldn't have been more pleasant and I was excited about continuing. I took a look at the take home assignment which seemed strange and not even related to the work that they do. It was an assignment with extremely vague instructions as well as offering no expected time to take on the assignment. I'm all for take-homes in lieu of whiteboarding but there should be a) details and expectations laid out so that people don't spend too much time and b) a resonable estimation of how much time the assignment should take. I wasn't even sure what they were looking for (i.e do you want it as representative of potential production code or are you just looking to get some specific answer? Do you want to see unit tests and SOLID code or just build the "right" algorithm for the question?) and wasn't sure to compose a front-end for the application or not. Unfortunately, I decided against taking the time to do it since I was given no indication as to what the potential interviewers would be evaluating me on.