I use the smoother on everything. I use a lot of segments, so it works great for me. Even those woodie hills that seem to be perfectly rounded at the top I can smooth and make them look perfect with the smoother.
DCs221 and the other FVD crackheads may use elementary to make perfect elements, but I only use the elementary wizzards and HSAK to make elements. Most of the time I just hand-build, unless I want a specific element for my rides. Most of the time I will modify the lead-ins and lead-outs of the HSAK helices to suit the track, along with the wizzard elemets, such as the loop entrances, or the corkscrew entrances.
The smoother is still pretty good, you just have to know how to spank it into submission [;)]