They don't know how to properly manage inventory on their website. 90% of the orders I have made with them get canceled on me and they say they don't have it in stock.
If you are lucky, you can sometimes find a deal and have it shipped without issues. I have had multiple occasions where they list an item in stock that is not in stock. They don't fill backorders properly either. Often times if you contact customer service, they are not very honest.
One of the biggest reasons they got so big and have done so well was their great customer service. Sadly, it seems to be getting worse and worse every year now.
I can't believe there is information out there saying this site is conservative. Definitely not the case. The authors there are terrible and they constantly write the same types of stories. They always have articles that contradict one another and it is just comical. The site just frustrates me every time I look at it. I'd say it's on par with Yahoo Finance..