Lotus, I have already gone back over most of the areas I edged and performance/battery life are fine. As the blade wears, it can both be flipped over and re-mounted, as well as lowered farther so, my first guess about wear is not as concerning to me. I'm not tall, but the length of the 'stick' still seems a little short - I probably need to adjust the D handle to be in a little more 'ergonomic' position - sometimes hard to know when both wheels are on the concrete.
To me, it's a keeper!