I haven’t used it in a while but I remember tab not autocompleting a formula I was typing and I also remember that if you started a formula with a + it wouldn’t handle it. I type a lot of formulas that I start with a + because it’s easy to do on the ten key. But it was more that a lot of small things and keybindings were different from Excel and because I needed to use Excel at work, it was annoying to have two separate workflows.