A couple of things I have noticed from using the text feature.
1. when you exit the editing mode, the size of the text slightly decreases which is frustrating when trying to change font size to fit in a particular space or sit on the ruled lines.
2. the size of the text in a text box can reset to 25 seemingly randomly without you changing the size, especially when I am editing and clicking out of the text box to check if the size is correct and moving the textbox around

these are more of a wish for extra features
3. different fonts or the ability to add your own font by uploading a file
4. more steps for font size, e.g. 12.5, 13.5 or even better, fully resizable