Thanks for the feedback! Interviewing is definitely not always pleasant. In general, the way I picture interviewers on this service is more of an opt-in thing

Thanks for the feedback! Interviewing is definitely not always pleasant. In general, the way I picture interviewers on this service is more of an opt-in thing ("oh, I have an extra hour tonight, I can definitely do an interview for $150") rather than a full-time freelancing commitment. If you do have technical people in-house, I think outsourcing the initial screens is ok but I'd strongly recommend having in-house engineers doing the subsequent interviews. A service like this is best positioned for "first steps" - ie phone interviews.