You'll find those kind of threads for almost any Mac, iPhone, etc. Literally anyone who brings up the 2013 MP, Aiden is there to diss it. You'll see dozens of threads here about how wonderful the old classic Mac Pro is and how you can add whatever GPU you want to it, and you also find lots of threads about all the issues users have with those at one time or another. And same in the Windows world. If you purchase based solely on forums, you'll be scared to purchase any Apple product if you read enough threads. People generally don't come to computer forums to tell everyone how great their computer is working.
As PieTunes suggested, the value is completely based on your needs and finances, and without a lot more info, no one can really help answer that for you.
I have one, and I think it's just a great little computer - YMMV. I would warn the 256GB SSD version is kind of small, but if that's not an issue, and you don't need the latest tech, still a nice machine for typical Apple pricing.