To an extent, yeah. The new pedal based power meters have some neat features such as real-time vector diagrams that you can use to work on pedal efficiency and smoothness. Just the raw power numbers themselves probably don't mean much by themselves - you kind of have to compare them to other metrics such as elevation gain and speed. I bought a pair of Power Tap P1's (Double, not single, sided) and I've loved them so far. In addition to the vector diagrams, whats been most helpful to me was using the measurements to maintain balanced output between both legs. But, like I said, I'm back to being a novice after being off the saddle for so long.