Gradescope saves a lot of time in the grading process. It has decent documentation and I've found it easy to find answers online to my questions. Gradescope has a lot of great features, but it's not always intuitive as to which options to use or where to find those features.

It's a slow start learning this tool, but once you get the hang of it, you'll quickly fly throw the setting-up of templates for quizzes and exams and be grading faster than ever! A worthwhile tool!

The dates bar on the side is confusing. If there are two assignments due on the same date, but one has a longer open window than the other (ie: you have two weeks to do one assignment but one week to do the other) then the bar on the side makes it look like one is due significantly sooner than the other, when they are due on the same date. I have missed deadlines due to this ;-;

My key criticism of GradeScope is that it requires you to grade problem-by-problem rather student-by-student. I deal with a lot of questions that may have 5-10 subproblems, each of which build on the last. If a student makes a mistake in subproblem 1a, there is no reason to also penalize them for it in subproblem 1f (assuming their approach to 1f would have been correct had they not made a mistake earlier on). Therefore, going through one problem at a time makes it significantly more time consuming than if I could go through one student at a time.

This is my experience working with other faculty. Hugely impactful for faculty and students. Gail Hunger

Use it for every quiz, best way to fairly / consistently award partial credit.

Gradescope has basically replaced all Collab assignments for me. I don't love the current Collab integration, but uploading grades via spreadsheet is pretty easy if you prefer that route. For most instructors, I think that Gradescope would be a pretty big improvement over other systems.