It is really a very nice concept as I can use two Whatsapp account simultaneously from a single device. The only thing thats ruining the app is Ads otherwise it is superb.
The need to have a dual sim handset also made us the need to have a dual social accounts and this has been made possible by Parallel Space.
Now that I have Parallel Space, I am taking all its advantages like running two whatsapp account, facebook messenger and twitter.
To an extent Parallel Space also save spaces because I dont need to have or download more than one browser since I can duplicate Chrome browser using Parallel Space, thus it saves phone storage.