Over the years, Craftsman's have been made by various saw mfr's...of late, none of the current models are anything but cheap homeowner saws. Mine is a Solo 651SP, a very good saw...and it has been fully woods modded. It's a good saw, but it lags all my other 3 cube saws in power----Shindaiwa, Dolmar, and Husqvarna. However, if it were the more pro model 651 (non SP), it would likely give them all a run for their money.
I don't use the saw, and may sell it...still one more part to replace....
Also, I was in Sears recently, and, if I recall correctly, saw a couple cheapo Homelites or Poulans, maybe a couple Craftsmans that were prolly Poulans, and a couple Husqvarnas. Of course the Huskys were the only ones worth buying....