The DRDT-2 is quiet to use. You can dimple at all hours of the day and night and not disturb anyone in your home, much less your neighbors. I believe it may also result in fewer unintentional dimples as the C-frame can on occasion require three hands-one to hold the material, a second to position the dimple and a third to swing the hammer. On the flip side, the C-frame can be used to rivet while the DRDT-2 cannot. I have not found a need to rivet with a C-Frame to date in my build, but the possibility is intriguing and I may purchase one at some time in the future. The DRDT-2 is well designed and built, and other builders really like it when they try it. I highly recommend it.