These boots stay on longer than I have them off.

From 6am they are on my feet while I abuse them in my auto shop, had molten metal, oil, grease, random heavy parts fall on them only damaging the leather (the steel toe is now visible), after 6pm I am in lecture and laboratory (engineering, chemistry, and math labs) classes and I also tutor till about 10pm and they remain comfortable while I walk around the classrooms and navigating through the campus.

They also survived hurricane sandy in long island.

The only discrepancy I have experienced with careful consideration to the engineering purpose of this boot;
the laces are cheap, you might as well replace them when you get these cause they will fray and break off in no time. I had CVS laces on here that lasted longer than the original;
water always got in because the ankle walls is not completely sealed with the tongue(once the tongue and the inside gets wet it seems the dye gets on your sock), although this design allows the boot to be easy on and off;
these boots wore out faster than any other boots I have owned BUT these were the most comfortable boots I have owned. I had to get a new pair cause the bottom tread is now worn so far that it is flat and has a hole and I am walking on my inner soles. They use soft compound rubber which is why they wear faster. Soft rubber will allow more flexibility at the toe joints and give more user control of foot movement, this is important cause you have a steel toe that is already going to weigh and restrict movement (although these boots don't exhibit the slightest indications of the presence of steel). This the main reason as to why these boots are comfortable for all day use, the allowance of flexibility by using LESS and SOFT rubber on the soles. Soft rubber also offers the highest traction (making them oil slip resistant) and also will not harden much during extreme cold temperatures which tends to degrade traction(speaking in dry conditions);
the metal eyelets and hooks for the laces have not broken off but they have rusted on the inside and often left oxidation stains on my socks. There is a visible coating on the metal, not clear coat but some sort of coating that still lasted with minimal fading on the exterior but the coating is not visible on the interior which is why it has oxidized. The oxidation appears to be of iron which I am happy to see. I wouldn't want any other type of metal in these heavy duty boots (unless we are going futuristic with super lightweight magnesium alloys)

I estimate I had about 3300 hours of usage before I decided to get another pair. They are still comfortable and usable as long as I don't go out in wet weather but lets face it, I need new boots. The steel toe is also great for kicking hard stuff.(I kick stuff on purpose cause it makes me feel like master chief) One of the garage doors always gets stuck and a small kick with these always breaks it loose. I use it to kick stubborn stuck tires off vehicles without having to grab the sludge(some kung fu skills or stretching required).

I would buy it again but I will keep in mind the experience and keep use of it accordingly (I have another pair of weatherboots for severe snow and water although highly uncomfortable that I keep as secondary in case I know the cat boots won't handle it)

Another note, I am gelling when I use these boots. They are fitted with Dr. Scholl's  insoles and they still have space for my feet. I recommend insoles to keep foot and joint impact to a minimum which will keep you on your feet longer without fatigue or for me it was knee pains.

For the winter; I experience discomfort when I wear a pair of wool socks over a pair of regular socks. There is not enough space especially with my insoles, my feet will freeze non the less at around 25 degrees F. or -2 degrees C. I wear my other boots for cold conditions (the extra pair of weatherboots I have are insulated) but at times I will still wear these boots regardless because you cannot beat the comfort for being on your feet all day.

Casual; I have gotten into night clubs(I can pass them for dress shoes), they are not bad with a suit(except for the steel toe that shows cause mine are so worn), government building security compliments me on them(expect to have a friendly conversation cause they will not pass any metal detection security), I exercise with them(makes the jogs more challenging), and saved my weak ass during a wedding party when I had a heavy little girl dance on my toes.

So all in all if you buy these; don't get wet, have extra laces, don't expect long life, feel the comfort, enjoy having heavy boots and feeling safe from muggers cause of your painfully strong toe.

I will be buying the Cat Endure Superduty as my next boot to test.