Had the kit on x740 w/54c for 6 years, mowing 3 acres. Was a little concerned with being made totally of plastic, but little to no wear to date. Wanted to try the mulch kit to see if it helped with the stuff being sucked up to the operators area to the radiator! Seems to have helped that area and not as "dirty" mowing, etc. Pros=good cut with no wind rowing or bagging, less cleanup, mow in either direction because of no side discharge, mulches leaves. Cons= Frequent under deck clean outs, can't let grass get too tall (1/3 grass height). Removal not too bad but only do maybe once a year, couple wing nuts and a wrench for clip on outside deck edge. I am blessed to have a lift in my shop, so clean out under deck not a big deal, other than time/effort. I have gone to mulch blades only whether kit is installed or not, you CAN'T use regular blade with kit! BTDT I guess I like it because it's on 95% of the time. Only times I've had to remove is during spring when rains were coming often enough to tighten mowing window plus turf growing like crazy. EASY ON THE FERTILIZER!