Most every other Mesh editing software allows you to switch between vertex selection and faces by simply converting the selection. For example, I want to make adjustments to a selection of verticies and then switch to edit faces WITHOUT having to reselect the faces. Calculate the veriticies and convert that to faces. Really a hole in the pipeline if I don't have the ability to switch between the two.

The whole triangle display bothers me. I want to be able to modify a model based on Quads. Also would love to see an edgeloop tool. It would be nice to select vertices along an edge without having to do it manually. These are really basic modeling tools and I find it frustrating that these elements aren't there.