A couple of disadvantages to having students upload through Moodle (some advantages, too). Here's one that has bothered me: I write comments, students don't read comments. They just go to PowerSchool to see what the grade is.
Writing the comments on PowerSchool would be too clumsy and time-consuming. I have sometimes delayed recording just so that they would have to go to Moodle and click on the assignment to see how they did.
So now that they all have their laptops, and assuming they are ready from the get-go (not necessarily a good assumption), I will try to get in the habit of telling them at the beginning of a class, while I take attendance and such, to go to Moodle and check the grade and comments.