There are a few real limitations to the C2 and C3. One big disappointment was only the first 4 device buttons show after selecting the activity. This is because the 'Assist' button (like Harmony's Help button) takes up the top two button locations in each activity. Four buttons for the 1st device page just isn't enough! It's like Harmony's 6xx series, but the Assist button can't be removed for 6 button operation like the harmony. Also going back into an activity runs the macro, so devices with power toggles will turn off - No 'smart state' technology. Lastly it doesn't appear you can reorder the activities.