I tried Hammer and it was mildly useful but as soon as I had to pass a project (unexpectedly) across to another agency the client bought in to do other bits on, it became a bit of a nightmare as they were Windows devs so Hammer became a bit of a burden as they couldn't compile the files or work in the same way and the project that was neat and tidy fell apart a bit.
Something to consider as not everyone is on a mac.
I tried Hammer and it was mildly useful but as soon as I had to pass a project (unexpectedly) across to another agency the client bought in to do other bits on, it became a bit of a nightmare as they were Windows devs so Hammer became a bit of a burden as they couldn't compile the files or work in the same way and the project that was neat and tidy fell apart a bit.
Something to consider as not everyone is on a mac.