The Honda HRX217VKA is at or near the top of all of the expert best lawn mower lists including Popular Mechanics Top Ten Reviews and Lawn Mower Review. The testers at Consumer Reports gave this model top ratings for handling bagging and mulching and “very good” ratings for ease of use and side discharging. Additionally the reviewer estimated the breakage rate by the fourth year of ownership to be 16% which is well below any of the other mowers they tested.
The Sun Joe MJ104E has more than 1250 five-star reviews on Amazon. Buyer Jim has had his Mow Joe for more than a year and left it in the weather and abused it otherwise. He is happy with how it has performed. He cautions against buying the 16-gauge extension cord recommended by Amazon. Instead choose 12 gauge for 100 feet or more and 14 gauge for under 100 feet.
After sharpening both sides of the blade place it on the kits cone-shaped balancer. If one side dips below the other continue sharpening it until the blade rests level. Return the sharpened blades to the mower and reattach. If you have a torque wrench its a good idea to use it here. Often you need to tighten the blade mounting bolt/bolts to a specific tightness level. Typically measured in pound-feet your instruction manual should list these specs. For example my personal machine the Honda HRR216VKA between 36 to 43 lb-ft of torque is required.