For now it's fine. Ideally you would want something that has a +SA on it. In my opinion the best SA choices are Dive for Yards > Power Through > Lower the Shoulder.
A lot of people would say that Power Through is better than D4Y, but I think that if you have Power Through at 10 (11 with CE) and Dive for Yards at 4-5 (5-6 with CE), then the +4 you can get to D4Y with AE would be more useful than the +4 you could get to Power Through. Once you get past 10 in a SA, any additional levels give diminishing returns, so taking Power Through from 11 to 15 would give less results than taking D4Y from 6 to 10.
However, this is all based on the assumption that you have Power Through at a high level (8-10 natural) and Dive for Yards at a lower level (4-5 natural max). If you either don't have Power Through at a high level or you have Dive for Yards at 0-1 or 8-10, then Power Through is a better option in AE.