I'm on Verizon, using the stock messaging app on my LG3. I keep having the issue of text messages taking forever to send. I have good signal, excellent data connection, and have no problem receiving Text messages. Messages will just sit there 'sending'. Sometimes the recipient does receive the text, it'll still say 'sending' on my phone. Secondarily, when texting in a group message, i tend to get messages in bunches. While others get messages as they are sent, I'll receive none and then all of them at once. I've played with the settings somewhat, but I haven't found a resolve.