Easy to install. We have had some fair success, blades are a little thinner then I would like them to be. At slow speeds the prop still tends to clog up like my old two blade unit. Blade is not a clean fit to the lower unit, the taper leaves a gap between the housing and the blade of about 1/8 inch. Just enough to capture weeds. We have invasive weed issues on some lakes and ponds here in Maine (milfoil). You MUST take off the prop after each use to be sure you are not carrying any unexpected riders to other ponds and lakes.
If you are in the need of a new prop it is worth the money, if you are looking for a true weedless prop, I would reconsider your options.
I purchase this as a spare prop,but did not use it because of the motor return. It seemed to be good quality and was well packaged, So I have no problem