I was looking for a well made, durable, collapsible, extension ladder with a good weight rating capacity. I did some online searching and eventually found this Vevor ladder. It's the perfect extension length for my "homeowner" needs. This ladder/company had good reviews from many who purchased one. I also have standard extension ladders as well. I have 28ft and 40ft ladders, which are too long and not easily maneuvered into tight areas. I've used this ladder several times now and have become accustomed to operating it and using it as it was designed to be utilized. This ladder is very well designed, heavy duty aluminum alloys, and very user friendly. The dual "one button" latching mechanisms are well thought out and easily actuated. It took me a few operations to become familiar with the method of collapsing the ladder when done with it. Pushing one button on the left side allows the ladder to disengage that side and move down away from the latch mechanism. Then pushing the button on the right side, while holding the ladder section with the left hand allows the right side to disengage and let the ladder section collapse into the section below it. You need to hold the ladder and move your hands above the section so you don't pinch hands/fingers. After a couple operations, you get the hang of it. It works very well, and as long as you're aware of the method, it's very easy and efficient. The ladder I purchased is about 18 ft. extended, and weighs about 39 pounds. The Velcro type nylon strap holds the ladder sections together when transporting, very well. I can easily pick it up, tucked under my arm and move it wherever I need it. The large bottom rubber feet provide a secure contact area on the ground. I would recommend you have someone "spotting" the bottom of the ladder when you're on it if it's on smooth, potentially slippery surfaces. I've used mine on asphalt driveways, wooden unpainted decks, etc., surfaces that are NOT typically slippery when dry. As with ANY ladder, you need to use common sense when setting it up and climbing. One note, that is mentioned in many other reviews, the distance between step rungs is about 16 inches or so, about 4 inches or so more than most "standard" step ladders. This is not a problem for my use. Of course, there is more distance if you open the top sections and leave the bottom sections collapsed. I usually open the ladder with the unopened sections at the top and leaving a minimum or no sections at the bottom. You need to insure the ladder is balanced properly top to bottom, depending on what you're leaning it against. Roof climbing should have several sections above the roof that are opened for easy access/holding on as you get on or off the ladder on a roof.You always need to remember you've got a longer step to the rung then you may be used to with "standard" ladders. Again, this is not a problem for my use.I'm over 6ft tall, so a longer step is fine. I think you'll be happy with this collapsible ladder.