I really like the pulse on my Lincoln 185. Once you get the timing down it makes welding thick to thin material much easier. Even on equal material it helps on vertical welds (move up on the peak of the pulse, and pull back on the valley and freeze it up a bit). On the flat feed in the filler on the peak and smooth it out in the valley.
I don't use it all the time, but when I need it it is sure handy.