"implemented sharding and achieved a throughput of 2828 transactions per second in its test net." - This is really cool. But as pointed out in the following article, how does it solve the Storage Challenge brought by Shading? Maybe you have to wait until the main network online to find the answer.
A comprehensive look into the Pros and Cons of Zilliqa blockchain: https://www.reddit.com/r/zilliqa/comments/8dkckl/a_comprehensive_look_into_the_pros_and_cons_of/