Many users have expressed frustration with the Gemini AI assistant, particularly regarding its performance in controlling smart home devices through Android phones. Complaints include sluggish response times and inaccuracies in interpreting commands, leading to disappointing interactions. Users have reported issues such as inaccurate weather updates and frequent error messages. To switch back to Google Assistant, users can navigate to the Settings menu, select Apps, locate the Assistant setting, and choose Google Assistant over Gemini. For devices with customized Android skins, users can open the Google app, tap their profile photo, access Settings, select Google Assistant, and choose between Gemini and Google Assistant. Further guides are available for reducing Gemini's visibility in various platforms and applications.