I like the support I get from these boots on long hikes. They look and feel very cheaply made. Pros:- Handle more weight- Center channel for mounting rack attachments - Comes with rubber strip to cover the channel when not in use- Heavier duty construction compared others - The clamps are actually metal vs plastic - The bars are thicker and wider - All the connections are metal screws to metal parts- Comes with all the tools needed to install- Has built in locks- Adjust to fit the car wellCons:- A little tedious to install because the racks are adjustable- They stick up a higher than the Great product . Sure, (*ALL*) wireless headsets have battery life issues, but the HD1 Free charges quickly, and anyway I have one of those $20 portable Lithium batteries for recharging. In other words, dubstep and similar might be lacking in effect, without the assistance of a wall/corner as well as being generally closer to the speaker. I dont like this heel flap as a retention device. Tiene muy buena calidad de sonido. Overall, its a good product to restore your pride and boost confidence, but its short of magic as you likely will need a new eraser to keep the magic going. Baby on the way and we dont have space at the moment for a baby room.