The neat syntax is sometimes butchered by unnecessary casting orgies.  
Swifts outstanding feature is its simple C interoperability.
The compilation times (Xcode) are lengthy compared to C or C++.<p>Example: <a href="https:&#x2F;&#x2F;youtu.be&#x2F;mgpAmqdiPKE" rel="nofollow">https:&#x2F;&#x2F;youtu.be&#x2F;mgpAmqdiPKE</a>