In 2016, a number of language applications released chatbots to complement their programmes. Used primarily in informal learning settings, chatbots enable language learners to engage in conversational speaking practice, which can be perceived as less threatening than face-to-face interactions with native speakers. This study takes a closer look at four second language (L2) chatbots--Duolingo, Eggbun, Memrise, and Mondly--and analyses the experiences which informal language learners expressed on various online platforms (e.g., Duolingo forum, Memrise community, Reddit). Results indicate a degree of curiosity and a willingness to engage in conversation with chatbots. However, learners expressed frustration if the dialogues did not correspond to their learning goals or if they were excluded from using the bots because of technical or payment issues, or discontinuation of services.