I'm quite happy with the service. The movers arrived on time. They were generally very well organized and professional. I had two movers for moving from a one-bedroom to a two-bedroom apartment. We had an initial hiccup with the service elevator at our move-out place, but they worked through it by helping pack some remaining stuff. The move-in was pretty quick. If I have one minor complaint, it is that they arrived in a truck even though I was going to rent a U-Haul. They knew this, but had "no other vehicle" with which to arrive. I ended up using their truck and cancelling the U-Haul, but only because I didn't already bring the U-Haul when they arrived. Had I already rented out a truck, we would have had two trucks to park in downtown DC, which would be impossible.
Overall, I was happy with the service and would recommend the movers.