I am a landscaper by trade and often use mow power for advice and the best equipment. If you are looking for cheap tools that will more than likely break often go with the bigger home improvement stores but if you are looking for tools that will last and make life a lot easier in the heat, go to mow power.
I always personally recommend the stihl and Honda brand tools because of their low maintenance and high engine life. Both are found at mow power for usually cheaper than anywhere else.
Although repairs generally take 5-10 days they are always good about calling you back and letting you know the situation. More oft than not I leave with more equipment than I anticipated getting but I'm always grateful when I'm in the field and I have the best tools