I have used this app before..

Pros:

• There are a lot of fun stickers and filters
• It's easy to save your photos and videos
• Instant sharing
• Easy to use + simple UI

Cons:

• In some devices, the app can be unresponsive
• When filter or sticker is applied, the screen slows down
• Sometimes, a face can't even be recognized
• App slows down when a lot of stickers are downloaded