Bought my Tormek years ago and I haven’t used it much. That said, I have updated many of the features and use do use it for reprofiling chisels, plane irons and knives. I just now reprofiled an old folder from 20* to 25*. What would have taken me quite a while with 100 grit stones, took me about 5 minutes on the Tormek. Now I can go to the stones to refine that reprofiled edge.
The only drawback for the occasional Tormek user, like me, is that it takes me about 15 minutes just to break out the machine and get it set up. It takes an additional 10 minutes to true the stone. For this reason, I try to reprofile at least 2 knives at a time. Having a permanent setup would be ideal.
In the past, I’ve toyed with selling the Tormek, however when I need it, it comes in really, really handy. Hope this helps.