I just want to agree with everyone that it is very easy to take off and put back on.
Even if you had a QA bucket that you removed to mow, manuverability is still limited. I always take mine off when I mow my yard. Easier to get around trees and it takes a lot of weight off the skinny front tires that like to rut the yard up.
I usually take it off when bushhogging too, because that is mainly back in the woods knocking down briars around trees and I need my tractor to be as compact as possible for manuverability.
If I was mowing a wide open field, I'd probabally leave it on.