I had a really good interview; it was very thorough and my recruiter went over numerous possible questions that the company I would be contracting for might ask. I was really impressed ... until I got an offer and Aquent tried to lower the hourly pay that we had discussed in the interview. I found this to be really unprofessional, and I didn't buy the story that my Aquent recruiter told me about how the client had gone over their budget and had to lower the hourly rate. I insisted on the original rate of pay and was offered the position, but I turned it down for other reasons. Interesting side note: After I turned down the position, I saw it advertised online about a week later through another recruiting agency, and the rate of pay was the original (higher) rate that Aquent had offered me. So I think the "budget" story was not true.
I had a mostly positive experience with Aquent, but the 11th-hour "renegotiating" left a sour taste in my mouth. I would advise potential contract employees to stand firm for the original rate of pay they were promised, and not to accept a lower rate of pay later.