I had that ramp and it's well worth the money. I bought it after I nearly lost a bike off the side of a single rail ramp. I actually ended up selling it for what I paid for it minus shipping. I also liked the fact that it could be broken down into three sections. But that can also be a problem because the top and bottom sections move independently. I had a friend weld it all together so there weren't any "oh sh**" moments.
The thing is somewhat heavy so keep that in mind. Also keep in mind that bed storage might be a problem because of the size. What I did was press it against the closed tailgate and use tie-downs to keep it there, but I also had a long bed so I could close the tailgate.
Discountramps.com is a good place. They shipped quickly, and they had left out a few bolts and they sent those 2-day to me.