This lock is not going to protect your bike for very long, if not used in conjunction with a larger locking system.
But,if you want some piece of mind in situations where you would usually leave your bike unlocked, this lock is a great candidate. It's small and light and prefect for gas station resupplies and bathroom trips. For cafe and coffee stops.
My only issue is that the locking and unlocking function can feel a little stiff and sloppy. And there is a small learning curve to getting it to run smoothly.
This rack is sturdy and well made, installed pretty easily (the screws lined up with the places they are supposed to on my bike), and works as advertised. I put some medium panniers on it to augment my larger ones on the back, for grocery shopping days. Now I can put all my groceries in the back, and put my clothing layers in the front when needed. That said, I thought I would like the low panniers, but now I think I would prefer them at least a bit higher. I haven't got into the rainy season yet, but when I do I think these are going to be subject to more splashing etc as low as they are. Anyway, it is a very good rack if you want this design. Also, it looks nice, and isn't overbearing.
I've used this thing about 10 times on roads that involved some road spray but never in a downpour. The first time I used it it had rained earlier that day and was decently dry out but from looking at the underside of it after the ride I appreciated all of the road grime that did not end up on my jersey. Now with that in mind, there was some road grime that did make it onto my jersey but I'd say it was cut down by about 80-90% due to this little thing. I also think it doesn't look that bad. If you're going to put a fender on a performance road bike (i have a specialized tarmac) this would be it. It actually doesn't look half bad for a fender. Don't expect it to keep you totally clean but hey, for the price I really can't complain.
I've had a couple sets of PDW metal fenders. My last set of 45mm fenders were a little too wide for the crown of my C3 so I went with the 37mm, which fits perfectly. Despite the specs, I'm running 32mm tires and the coverage is just fine. They've replaced the rubber flaps with plastic, which feels a little bit like a downgrade, but the plastic flaps are slightly longer and seem to provide better trailing coverage. I'm not sure how durable they will be, but so far they've been fine. Worst case I will replace with more sturdy flaps - easy enough to do with this design. Another thing that seems to have changed is the finish seems to be somehow more permeable than my previous fenders. Best way to describe it is the previous fenders would wash off really easy and these fenders seem to collect road grime a bit more. Not sure if that due to the paint - these fenders are black versus silver. Other than that, the fenders are super rigid, fairly light, and quiet. All that I'm looking for in a fender.