View- on the first look it will be quite confusing. You won't be able to understand how to use it. And there is probably a chance that You will confuse between ads and real features.
Transfer speed- transfer is quute good. Could go upto 5mb/sec to 8mb/sec. But mostly the speed is around 3mb/sec which is basically low.
Features - it is only capable of transferring data from one phone to another thats it. It cannot perform a group transfer. It cannot transfer files between pc and mobile unless the pc has shareit software installed in it.
Too much Ads- the most irritating thing about this app is ads. So many ads are in app. Most ads are of shareit only telling to download share it cloning app share it pc share software and other non related ads.
User friendly- it is no where close to being user friendly with so many ads slow speed and limited features.
Bugs- many times the app just hangs while transferring. This wastes time and space that was already filled with half of the sending or receiving file.
Opinion & Suggetion-
In opinion one should not install this app for data transferring. Instead of this one can install Xender which is far better than Shareit. Xender will provide you with all such features which Shareit is not providing with. I strongly recommend not to use this app.It is waste of your phone's space.