You can apply it for contact forms and it is providing great features (like automated response-mails, redirect-pages etc.). It is also possible to create forms on more than one page thus making it possible to create surveys.
Data gets stored in the Joomla backend and can be evaluated.
The arrangement of the form fields can be done via drag and drop - which is great.
I am a recurrent Joomlashine-Template and additional components user. I come back for the great concepts and the good and usable tools that Joomlashine is providing. This includes fast support and helpfull discussions about what features need to be considered and adapted for further releases. When suggesting to adapt UniForm to make it possible to do price calculations (e.g. for web projects), Joomlashine was open and is seriously considering to adapt a feature to do that. So I can only say - stay tuned, this one is going to develop!