Vocabulary.com is very easy to use, even between multiple classrooms. In addition, co-teachers can be put on the same account to allow both teachers to be able to see what is assigned to students and to use the program interchangeably. I also like the fact that we can not only assign quizzes, but we can also hold competitions with other schools. This helps with student motivation. Review collected by and hosted on G2.com.
I have not yet found anything I dislike about Vocabulary.com. The program is very useful and provides feedback on individual students as well as individual words and the level of mastery. Review collected by and hosted on G2.com.