The tonal range of cyanotypes is a bit limited compared to other alt. processes, like any Alt. Process it requires the right neg another problem of cyanos and many other alt. processes is that details get lost due to fact that emulsion soaks into the paper. I personaly prefer the originals formula to Ware's new cyanotype supposedly the latter has better detail and tonal reproduction. I like the graphic look cyanos can give me.
Also I've certainly seen some fine renderings in cyanotypes but not often.
The old saying still counts easy mixing does not equal easy to get good results. Another easy process is the saltprint only two max three ingredients but it got one hell of a temperament.