Participants in the user testing found the interface easy to learn, easy to use and effective for entering formulae. A number of the participants also asked when a fully featured version of the system would be available. When asked to rate the style of interaction that this system used against other systems they had used (typically Microsoft's equation editor or LATEX), on a scale of 0 (Worse) to 5 (Better), the answers were all at or above 3, with an average of 4.2.
Testers who were mathematicians, those who would have the highest
requirements of such a system, remarked positively on the system and
what it was able to do. Their main criticism was that there was only
a limited subset of mathematical formulae that the system