I am using WhatsApp since 2 years.but still not facing any problem. This is the best messaging app to share a photo, videos, .any more files.
We can also make a voice call through internet.Whatsapp allows Windows, iPhones, Blackberry, .etc to exchange images, videos, .any many files.
It has three tabs .such are calls, chats and contacts.we can also send voice messages. The feature provided by WhatsApp is very amazing.
This is very very user-friendly to use and very useful as many of persons are using it or we can say that WhatsApp is a part of our Life.
I suggest you try WhatsApp once.
Thank You.