Here’s a chance to try a general purpose automated scoring system for free.
While the accuracy is below that of a human grader, it gives you an idea of how automated scoring systems work and includes immediate feedback on things like grammar, spelling, word choice, and plagiarism.
Many teachers have encouraged their students to check their work using this site before turning it in. Students get immediate, positive feedback. And teachers can concentrate on things like accuracy, reasoning, and clarity rather than spelling and grammar errors.