I use iClicker across my first, second and third year university courses (N = 100 - 300 students). The portal is very easy to use and set up. IClicker is also integrated into my LMS, which makes transferring grades straightforward, even for my very large multi-section classes. The interface supports multiple instructors teaching the same course, which is a big plus. I share one of my classes with a co-instructor, and we can both access and use it while teaching. Overall, IClicker is especially useful for formative assessments and for keeping students engaged in large classes. My students love seeing the response distributions to questions and I also use it for exam reviews. When I've needed support from the iClicker team, they have been quick to respond and the issues had been dealt with easily. For my institution iClicker is bundled in with the textbook and the price is very affordable for students.

I like that there's a lot of questions already premade for Achieve, which helps in limiting cheating with a huge pool of diverse questions. It's great because we can ask diverse questions to students, and it's easy to create our own questions. I also like that we can easily edit the premade questions, which makes it more personal to the classroom. I felt like it was easier to build my own questions in Achieve.

My favorite feature is the integration into Canvas, which creates a great user experience for both students and faculty. Setup is easy, and then Achieve assignments can be accessed from Canvas, and Achieve grades sync back to Canvas.