So, I will start off by saying that I do not own and have not owned any of the competing (including OEM) Tonneau covers. My review is entirely based on my own impressions of the product without a tangible comparison point or manufacturing expertise. Take it with a large grain of salt.
The product itself I have been using for the better part of a couple of weeks now. The panels feel robust and I have no concerns about the long-term durability. The strap mechanism was a welcome surprise upgrade over the previous velcro-strap system and I have found it to be plenty effective for quickly removing the panels. The fit and finish has been excellent and I have not had any of the issues that others have mentioned in their reviews in those aspects.
Moving on to the issues that I do have:
1. The instructions. The print out directions for using the strap system were unintuitive to me and took several reads + trial/error to make sense of. Even still, I'm not sure that I could easily convert it to "carry strap" mode. I would suggest more pictures for the less technically inclined.
2. The price. Obviously, I knew the price going in. I wasn't misled. There wasn't a bait-and-switch. That said, there are several prominent alternative options available at a significantly lower price point. I dont doubt that the build quality of this product trumps those. But, does that build quality provide any additional utility? Is it going to noticeably increase the longevity? I personally am dubious that it will.
Do I regret the purchase? Absolutely not. It's a very well made, premium product, that delivers exactly what it promises. That said, based on the high price and availability of alternative options, I can't recommend it without significant caveats.