Downsides of Unlimited Data. Having this grandfathered benefit does include some limitations. Data is throttled or slowed down after 3GB a month when using 3G/4G Data is throttled or slowed down after 5GB a month when using 4G LTE (Some people are lucky and do not get slowed) No hotspot feature Family Plans did not have unlimited talk and text Adding a new line would force it to use a different plan
