They handled my EB1B case timely and professionally. They made my application look strong while I once considered myself a rather weak applicators . They know how to make the best of what I can provide in my application package. I had 20+ papers, but unimpressive 80+ citation numbers, I have a series of reviewer/committee services, and some interest/query on my works overseas. We worked together to select 6 referrers, 3 independent, 3 overseas (2 from my home country and 1 Europe ). I guess all these evidence they help me to find out helped compensate my lack for citations. In short, without them, my I140 would not been approved in 10 days (or even one week, from the time when USCIS start premium processing to the time when we got approval message) !