I'm excited for the project, but disappointed that they kept the arcane syntax of TeX/LaTeX. Math expressions are hideous to write and read in LaTeX syntax.
Arcane, but I wouldn't say hideous. What's wrong with \alpha for α or \sum for Σ? Do you have a better idea than this?
The first obviously-better idea is to use a/b instead of \frac{a}{b} and (x) instead of \left(x\right).
The next obvious improvement is to allow (not require — allow) me to write α instead of \alpha, ∈ instead of \in, and ≤ instead of... whatever the code for that was.