I've been training in boxing for over 10 years now and Michael Farach was, BY FAR, the best instructor that I ever had. Differently than average instructors, he corrects your movements in details (since boxing is a sport of inches), talks about strategy (often neglected by instructors), shows there is a reason for every punch that you throw (my fighting IQ really improved) and has a modern approach when it comes to sparring (to get the best out of it we don't need to risk injuries). I also noticed that my conditioning improved by a lot.