I have been using Snapchat send 6 months and I have noticed various issues while using it. First of all the user interface is not that good and the app drains the battery a lot faster. In phones which have less amount of Ram such as less than 1 GB the app runs really really slow and this irritates the user very much. The app consumes a lot of data in the background. The app crashes more times when compared to other apps such as Facebook and Instagram and adding friends via snap code is not very easy. It usually takes at least 3 attempts to add an user for the first time. Oral experience of the app is quite disatisfsctory.
I would not recommend you to use this app if you are low on data and your phone doesn't have a good battery. Only flagship device is run this app to smoothly.