I have experience with Huxley's interim division in the Netherlands. It's really poor.
Several people reached out to me from their division for a huge variety of open positions, from entry level to senior (red flag), and they always surprisingly found me a great match. To all of it.
I understand they are using their internal database of potential candidates but it looks like they never check the ongoing processes.
What's very concerning is how they pressure you: be available for their phone calls, where you keep repeating the same "additional information" (90% of it already on the resume), and once you conclude the role might be interesting and a good fit, and it's decided I'm being put forward to interviewing with their client, they delegate their jobs to you. I mean... they reach out, they give you a few details and then ask you to write your motivation for that role. Why don't they make notes during the phone call?
After you confirm you give your consent for them, and only them, to present you as a candidate for the role, they never follow up. In the past 3 months they reached out to me about at least 6 positions, which is already ridiculous. Once we agreed on a good time when they could call me -- they did not call. I originally proposed a later day on that week but I was pushed back saying it's urgent and it can't wait til that day. We ended up talking about the role 3 days later of my originally proposed time. I was expected to send my consent and my motivation within an hour. I was also pressured to give a heads up if my other interviews (not via Huxley) are moving forward and let them know when I receive an offer but before I accept it. Weird and unprofessional approach I must say, and based on these contacts with them, this seems to be the business as usual, not the exception.
If I were an employer I'd be concerned about how they are representing me, and what it does with my reputation through candidate experience.