Complex sentence: The device's performance was panned and considered "horribly erratic", while the camera was described as sluggish and not good in practice, noting under-and overexposure, although video recording was regard as reasonable.
Split into simpler sentences: The device's performance was panned and considered "horribly erratic". The camera was described as sluggish and not good in practice, noting under-and overexposure, although video recording was reasonable.