I can speak with surety about this product because I have owned it for five years. It received very little use the first 3.5 years. It worked great the few times I used it for those years. I only had it on the hitch when towing, and I removed it once towing was completed. But then I started towing a lot and left it in place for the last 1.5 years. Recently, I needed to take it off my hitch and found the lock was seized. Nothing worked to unlock it, so I had to cut it off; a long process that I did not have time for since I was in a hurry to get on the road. Once I pulled out the pin, I saw the pin was badly rusted within the receiver. So, in 1.5 years, this lock rusted fast and became useless.

Here is the good:
1. It is sturdy and seems to be very secure.
2. The rubber key cover works as advertised and lasts a long time.
3. Easy to operate.
4. Out of the way from my chain connections.
5. Fits my hitch very well. I have seen other reviewers complain about it being too long for class 3 and 4 hitches. I can't figure out why they have a problem with that. There is very little side-to-side motion, which does not affect anything.

Here is the bad:
1. Chrome plated. This means the metal it is made from is not corrosion resistant.
2 You have to keep the lock lubricated very frequently (like once or twice a month) to get decent life out of it (too much maintenance for me).
3. The corrosion problem could lead to structural failure without warning. That could mean losing your trailer on the road.
4. The lock mechanism can seize up from corrosion. If you end up having to cut this off your hitch, there is possibility of damaging the chrome or paint of your bumper because the cutter can and probably will slip.

Because of the corrosion problem, I would not buy this again. I would pay more for a receiver lock that is corrosion proof. Too bad those are hard to find, but I did find a Fulton that claims to be rust proof; so I will try that one.
I can speak with surety about this product because I have owned it for five years. It received very little use the first 3. 5 years. It worked great the few times I used it for those years. I only had it on the hitch when towing, and I removed it once towing was completed. But then I started towing a lot and left it in place for the last 1. 5 years. Recently, I needed to take it off my hitch and found the lock was seized. Nothing worked to unlock it, so I had to cut it off; a long process that I did not have time for since I was in a hurry to get on the road. Once I pulled out the pin, I saw the pin was badly rusted within the receiver. So, in 1. 5 years, this lock rusted fast and became useless. Here is the good:
1. It is sturdy and seems to be very secure. 2. The rubber key cover works as advertised and lasts a long time. 3. Easy to operate. 4. Out of the way from my chain connections. 5. Fits my hitch very well. I have seen other reviewers complain about it being too long for class 3 and 4 hitches. I can't figure out why they have a problem with that. There is very little side-to-side motion, which does not affect anything. Here is the bad:
1. Chrome plated. This means the metal it is made from is not corrosion resistant. 2 You have to keep the lock lubricated very frequently (like once or twice a month) to get decent life out of it (too much maintenance for me). 3. The corrosion problem could lead to structural failure without warning. That could mean losing your trailer on the road. 4. The lock mechanism can seize up from corrosion. If you end up having to cut this off your hitch, there is possibility of damaging the chrome or paint of your bumper because the cutter can and probably will slip. Because of the corrosion problem, I would not buy this again. I would pay more for a receiver lock that is corrosion proof. Too bad those are hard to find, but I did find a Fulton that claims to be rust proof; so I will try that one.