I don't like these at all for the following reasons: 1) Too thick, way too thick. Like 1-1.5 inches of padding. Hard and soft materials make up this thick shell. Sure this would be good for a massive fall with direct impact to the elbows, but this leads to my next issue 2) Not flexible. Maybe over time these would fit better and conform to the joint and allow greater range of motion, and in the 10 minutes I wore them they seemed to flex better, but I couldn't get over point number 3) There is a hole in the thinner fabric on the inside portion of the elbow guard, presumably for breathability. But during the flexing of my elbow, skin gets squeezed out through this hole and is then chaffed by the sides of the velcro straps. This hurts, is not comfortable, and I don't think would go away during break in. I have red marks on my forearm from less than 10 minutes of wear.
These may do a good job of protecting, you, but that is if you actually wear them. And for the reasons above I wouldn't wear them. Returning.