(+) It's clean - everyone can check the results of this file: http://download.informer.com/win-1192732742-b91200a9-52936978/pazera_free_mp4_to_avi_converter.exe on VirusTotal. 
(+) Has many settings, which can be of some use for advanced users; beginners simply shouldn't change them or do it with caution.
Cons:
(-) Putin might be angered on you - when he'd know that you've chosen a tiny and free Polish program for video conversion, instead buying a Russian spyware. 
