Product review (4 stars): Doable
I bought this set of bearings because I didn't want to take a chance on a cheaper set.  The disassembly of the machine was not difficult, but it was involved for a novice and I had to labeled screw groups, organize parts, take notes and photos. The vendors response was quick and I received the bearing kit within a few days.  His video was helpful but I had to view others to disassemble the machine.  The bearing removal process and reassembly was not as easy as shown in my case.  A couple of suggestions, when you set the outer tub on the 5 gal. bucket, look in the hole before you put the tool in and start pounding to remove the rear bearing.  there is a casting lip on the bearing housing above the bearing. Don't beat on that instead of the bearing.  When you flip the tub over to remove the inner bearing and seal it did not work well because the plastic tub reverberates, and than one of the alignment taps broke off.  What worked for me was to just use the bucket again on that side. It provided better stability closer to the bearing hub.  Assembly of the bearings wasn't all fun either, when installing the outer bearing using the old bearing carcass, don't countersink the old bearing below the rim attempting to drive the new bearing home and then think you will just pick it out with your fingers.  No, you have to get creative to remove the old bearing that will now also be tightly inserted in the bearing housing. Better to look for something slightly smaller then the old bearing when you get to the top of the rim.  The inner bearing was an even tighter fit that took many plows with a 2 lb. single jack.  After it was driven home I could see distortion in the metal section between the races that seals the grease and bearings. Not sure what I would do next time, freeze the bearing and warm the housing before committing with a sledge?
The machine now runs and is quiet, if it continues to do so I would be inclined to up my rating to 5.