I had a set of an earlier version of these chains that I used dozens of times in deep snow over many years until the car rusted away.  The hardest part of installation was installing the elastic tensioning device.  The big burly guy in their video makes it look easy but it wasn't so easy for me.  I found that using a skate tightening tool, a metal hook on a plastic handle, made the operation routine instead of a struggle.  Amazon sells an A&R; Lace Tightener which looks like the one I used.To install these cables, after dragging one end from under the car, pull the top inside connecter up and forward to the outside of the tire as much as possible and connect it.  Next connect the top outside connector.  Now push the top inside connector back to the inside of the tire.  Clear the area of anybody with tender ears in case you are prone to verbally expressing your feelings while engaging in frustrating operations.  Now connect the bottom connector.  On solid ground this is sometimes easy.  In snow you may have to keep pulling it back and forth in the back of the tire so it can dig down into the snow and ice until you get enough slack to connect it.  Once this is done it is time to attach the tensioner.  Attach the section where you will have the most leverage last because you will need a lot of leverage to make the last connection.  This is probably the connections at the 10 o'clock and 2 o'clock positions.  Use the lace tightener to help and don't be surprised if you have to remove your gloves for the last connections.  Get both chains on the tires before you do the tensioners so that you can get your frozen fingers back in a warm location as quickly as possible.Removal is the opposite of installation except it isn't hard to disconnect things.For easier connections buy the Peerless Auto Trac chains.  For easier tensioner installation buy the Auto Trac Chains or the expensive Thule chains.  For easier removal buy the Thule chains with the pull release or the Auto Trac chains.Chains are better than cables for traction but the cables have greater tire clearance and possibly better durability and plenty good traction until the snow is deep enough that the bottom of the car is pushing it out of the way and dragging on it.For my next car I first bought Thule chains (soon to be returned) and then Peerless Auto Trac (soon to be delivered) for the greater ease of installation and better traction in deep snow.  I will submit reviews for those after enough time has passed to give a valid review.I give these cable chains five stars for function and durability but an overall rating of four stars due to the difficulty of installation.As other reviewers have noted, do the first installation and the first installation each year in a dry level location to familiarize yourself with the procedure.  Do an installation when they first arrive to make sure they fit your car and to make sure all components are there.  Don't wait because the Amazon automatic easy return policy is only good for 30 days.  You should probably wait until bad weather to order them so that you can try them out while there is still time to return them.