A lot of flaws, all the time I felt using it just because my friends use it, but with a lot of limitations and the UI when deleting is not user friendly that made me somethimes press the wrong option. Me and my friends tested Telegram and wow! A lot of features like the ability of edit text or replace pictures or files, save to myself, proximity alert, etc... It was a nice ride whatsapp but is time to move on to better things