Bests & Worsts Reviews from Amazon

I bought a few of these in 2016. It took about 2 1/2 years of heavy use for the left click to get unreliable. For the price, I figured this was an adequate lifespan. I bought four more in October 2018. First thing I noticed was that the new ones were noticeably flimsier in construction. Second thing I noticed was that surfaces the 2016 model had no problem with, the 2018 model wouldn't work on. Had to buy a mousepad like it was 1999! Third thing was that one of the 2018 mice completely died after about 40 days of use. Amazon says it "might" be eligible for replacement until October 2019 but doesn't actually give me a button on the website to return or replace this product. For $6.99 I don't expect a lot of mouse, but I do expect more than 40 days.