Advantages.
Available with Mobile Tablet machine, and PC.
A sticker and cartoon emotion emotional many, the Guan, pretty sad sad, happy, and greetings.
Add Friend in several ways, such as the list of QR Code to Shake etc.
Can send a message, to create a group Chat and share photos, video, audio, during the conversation.
Can Voice Call instead of the phone, both at home and abroad without money.
The talk group. If a man reading is that Read how many will make a guess or ประเมินได้ who read or not read. Will have it as an excuse to not recognize the information.
Cons.
The alert is irregular.
Cannot delete the message sent.
A lot of features make the waste batteries.