SDK pros and cons

Hi,

I would like to understand the cons of investing in building custom component using Design studio SDK.

What would be the impact on these SDK components upon new release of design studio ? Does it affect backward compatibility ?

I went through the SAPUI5 component catalog, and got interested few components such as accordion menu etc.

SAPUI5 SDK - Demo Kit

Is it possible to use those components in SAP design studio ?

with regards

Senthil