I got contacted by an East-based agency while working in UK. They were very professional all the way through and kept me well informed. It took a month for a positive feedback. Weirdly enough, QP took some time after that organizing the interview. I litteraly had to remind them.
I had the strangest interview of all times. The interview was organized very early, Doha time, it was still dark in UK, sleeping time. I was interviewed online by two engineers who were not sure what they were looking for, kept asking me unclearly formulated questions related to a certain piece of equipment.
Anyways, I worked with QP for 5 years and still hoping for a suitable offer.