! Mentioning the pros always prompts furious debate from people who are not familiar with CIs, and so may be more visible, but cons they are discussed pretty frequently:
1. Surgery
2. Equipment issues (breaking, adjusting, settings, batteries)
3. Accommodation issues (FM systems, accessories for other technology), where they can/can't be used, some people have trouble keeping them on in rough and tumble physical sports, some infants don't like things on their heads, some people get irritation at the magnet contact point if they set their magnet too strong, teachers don't know what they are, strangers think they are bluetooths, etc.
I've seen CI users discuss their experiences, the apprehensions, the scary surgery, the discomfort after, the activation and excitement/ disappointment of first sounds, getting to know the equipment, managing the equipment. I've seen parents attempt to discuss issues with the educational experiences and the learning environment, but 1. those threads always get derailed into debates about whether or not to get a CI, so you never get a full discussion about the issue that was brought up and 2. there's just a handful on this forum with experience with or as a child who grew up with a CI in a particular learning environment.