Yeah, UH were great for us. We had an urgent need for a front-end dev, and within literally 2 or 3 days of posting we had someone amazing sat in the office churning out great work. From memory it was really cost-effective, too...
A byproduct of where we were born, and how we got known. We users and jobs from all over, but yes, it's got a London bias, we're actively working on that over this year, and making the progress we wanted to. Any thoughts are appreciated.
As an employer too, the pricing model is super.