1. Send button won't work 50% of the time, you have to quit chrome then clear cache every time this problem occurs, very annoying.
2. Calling interface will go over send button during a call and a calling sequence so you can't text anyone during a call.
3. Messages are displayed from old to new. When you send a new sms, you have to scroll down from YEARS of messages to get to the latest one, every time.
I don't know what your devs are thinking it's a huge non sense.