Had a bit of a play with the new Profoto D2s last week and got some nice results. Always fun (/messy!) to work with liquids and a quick flash. Generally, nice new heads for the studio. Only drawback I found is that if you're relying on the flash heads to freeze motion (fastest shutter on H5D 1/800) you are a little limited in that you can't push the heads beyond half power I found before the duration slows to a level where motion blur kicks in. All the same, nice update all in all.