When I bought this, I was unsure how practical it would be for day-to-day use and what the battery life would be like.
A month in, it has been a very handy and practical thing to have around. I would recommend it to Tab3 owners looking for a keyboard. The battery life is outstanding too.
The only criticism is that you can't have a charger plugged in to the tablet when it's standing up on the keyboard. This can be quite annoying when you want to charge and work at the same time.