1. Test Method box does not let you type to find the test, you have to click on the little button to the right and then type, but some tests are nested and you have to know what the parent label is first. Being able to just type part of the test name directly in the box would speed things up nicely.
2. Tab order is broken when creating tests and you have to click with the mouse to get to many of the fields. Tabbing from the Test Method should take you to the next box and so on
3. the labels next to Test By and Test Method look like buttons, why not make them buttons to get to the lookups that you have to click on the smaller buttons to the right, that to me would seem more logical and obvious, not to mention a bigger button to hit with the mouse.