I'm happy with Points.com
I just used points.com for the first time and I'm totally happy with it. I had 7,702 miles in Continental's program that I will never use since I'm dedicating myself to AA miles for the foreseeable future. So I wanted to convert CO miles to AA.
Based on comments here, it sounded like points.com was a ripoff and I should use the Web Flyer mileage converter to find the method to best maximize my transfer. The converter gave me two options, but both involved first converting to the Amtrak program...which I wasn't a member of and which you can't make a transfer to unless you have "Select" status...which I was waaaay off from since I wasn't even a member yet.
Anyhow, the two Web Flyer converter methods would have resulted in either 3,000 or 1,500 AA miles produced from my original 7,702 CO miles. This was moot since the Amtrak thing prevented me from doing so.
So in comes Points.com. I figure it will give me an awful exchange rate, but at least I'll get something for these CO miles. Then, lo and behold, points.com turns my 7,702 Co miles into 2,368 AA miles. Not bad at all considering the Amtrak method would have netted 1,500 or 3,000 had I been able to do it.
Welp, that was my experience. Don't be afraid of points.com!