Honestly, I have no problem with these chips. I do have a problem with these chips at these prices . . but they've been out for a little while, now.
The 4500 is available easily for $109 even at the moment. Weirdly, the 4100 is available for $108.
But, as the article states, for only a little more, the 5500 (best price as of this time is $119) is a far better chip.
Of course, if you have a convenient Micro Center, then the 4500 is $99.99. Less the $25 off any CPU coupon (new customer, also a facebook version of the coupon for non-new customers) brings that to $74.99.
Add in a "submit a build" $25 coupon, and suddenly, this chip can be had real cheap.
Then again, they have the 5500 at only $20 more, and the same coupons/discounts apply.
That said, if you're really squeezing the budget, the 4500 would be good, say, as an upgrade from the 3x00G models, 2x00G models, Ryzen 3 1x00 and 2x00 models, and possibly most Ryzen 5 1x00 models. Most certainly the Athlon models.