He's older now, but was one of the best in the 1980's.
He hits very hard with both hands. Very talanted
The only thing I don't like about systema is the instructors almost never protect their face, in any videos. Their hands are always dropped, unless attacking. I think he would have trouble against a trained boxer, especially because he leaves his face wide open- in every video. Other people have noticed this also.
https://www.youtube.com/watch?v=UUohgz-nBVEI think the Israeli Krav Maga Instructor is somewhat better. He also protects his face much better in his videos. Very talented as well.
https://www.youtube.com/watch?v=k_M8eiPOdFQ