Looks promising. After playing around with it for 20 minutes, I'd say it's definitely serviceable.
I just saw on LinkedIn that HQ is in New Orleans. Not a typical location for a software company!
Under Drawing, they show being able to connect sketches to the input. For example, dimension the width of a part in the sketch; click on the dimension number and that can serve as input for the calcs. I'm not aware of another program that does that without coding.
Because it has a price and is obscure, if I develop a tool with it, I can't share that tool with a subconsultant that I bring onto the project. Might be a consideration.
I wonder if all equations have goofy colored shading. I played around with some of their examples and could change most the things I wanted to change, but I couldn't figure out how to change that.
I was a little disappointed that an equation must have everything either regular or italicized. Semi-standard in technical writing is numbers, greek, and functions are regular and English variables are italic. This might be an example of it still being a little rough.
The function examples are only one line functions, like turning one expression into a function. I wonder if one could write multi-line functions like in Mathcad. If not, then that might reduce the ability to re-use previous work.
I used Mathcad a lot from 2005 to 2016 and then tried Smath for a little while and didn't like it. It was just clunky enough that it got on my nerves and I was always a little nervous about malware. Then the geopolitical situation changed and I deleted Smath altogether. That was even before they started charging for it. LOL
I use GNU Octave for a lot of program development, but it's not visual at all. Just coding. The main reason I don't fully commit to Octave is it's slow to input and output, like that part is from 1992. For output, I end up typing stuff, like: disp(["Available Strength = " num2str(Rc,3) " kips"]) Then there are steps to turn the output into a pdf or html for reporting. That's not terrible, but it is clunky and slow compared to other options. I just remembered the biggest problem for me, which is there's no fast and easy way to embed a figure in the output. That means every input/output is only text. That is a gigantic disadvantage for design, even compared to Excel.