I love APMEX for their great selection and extremely fast processing & shipping. I recently ordered a premium silver set believing it was a good value. I later decided to search the site and calculate each piece separately and discovered I could have saved 90 dollars! The only option I had was to return the set and lose 50.00 on the return. I contacted them and received a 20.00 credit. Lesson learned.
Pros: Very large selection, fast shipping, good customer service. Cons: Higher premiums compared to other online dealers, most sale prices are just ok. Really the only reason why I ever buy on APMEX is because all the other dealers don't have what I'm looking for. APMEX is seldom the lowest price dealer. However, they make up for it with selection and customer service.
Short and sweet, mediocre products at premium prices. Enough said.
As always, APMEX delivers. They are usually not the cheapest when it comes to the most common stuff but they are reliable and have an amazing product selection. Lately I've been ordering 20 Franc gold coins from their eBay store for less than the cash price most other dealers are selling them for, including APMEX's own website.