I purchased a CURT 18153 Basket Style Cargo Carrier and will be using this product with it to take my daughter to college in late summer. I unboxed this product to check its build quality and to make sure it would fit the cargo carrier as expected. It does fit fine, and seeing it opened up I can now visualize the items I'll be storing in it for travel. I think it will be perfect for light weight items like bedding which will compress when the included straps are cinched down.At first glance I think the product is on par with the price I paid (fifty-seven dollars), and perhaps a tad better. I lived aboard a sailboat for several years and used similar bags for deck storage and on a dingy. It's not as heavy-duty as those, but I do expect it will be waterproof and maintain that ability through Oregon's changing weather patterns which can include downpours and blazing hot sun in the same day!Call me Captain Overkill, but I may put garbage bags around all the items I put inside, just in case. I think the way the bag is constructed it would be tough for water to get inside unless there was a hole in the bag. But I think minor abrasions to this bag could occur and would require a quick fix with duct tape or similar. Movement - particularly on the bottom of the bag - could affect this product's ability to keep the weather out.The included straps are thin and the buckles are plastic. I do think they'll do the job, but will need frequent rechecks. The included instructions explain you will use them to secure the bag to your cargo carrier, and there are some metal loops that can be used to extend the connection if needed. I would be concerned about using just these straps alone, and will either be adding a cargo net or better yet, tie down ratchet-style straps to reinforce the attachment to the cargo carrier.The bag is very roomy and should work well for my intended purpose. The zippers are covered by a generous flap and while it doesn't have a frame inside of it (see how one reviewer fashioned his own out of PVC pipe) you could do that or have it mold to whatever items you put inside it.It looks like it should rinse off easily should it get dirty, and folds easily for storage. If I intended to use this bag over several seasons; enduring both hot and cold extremes, with hard contents rubbing on it, I might look elsewhere for a more heavy-duty bag. Although I don't know if by spending more on one I'd get that anyway.Honestly, I think that if you take good care of it - storing properly when not in use, and making sure it's not rubbing up against metal on the cargo carrier, this bag should be a good choice for many travelers. I'm looking forward to using it and love that it easily adds much needed storage and protection.----------------------NOTE: I loved Shawn Parr's review of this item with photos.I hope to add similar ones after we've used it. I will report back after its maiden voyage of 600 miles round trip in late August 2016. I expect it will do fine and be used for several seasons if I load and transport it with care. I will be putting down cheap (Dollar Store) shelf liner - the rubber kind - in the bottom of the cargo carrier to limit the abrasions to the bottom of this bag during use.The photos added to this review include: zipper, zipper with Velcro, in CURT cargo carrier (empty), in CURT cargo carrier (full-ish with room to spare in Amigo carrier), items stuffed into bag and zipped ready for tie downs to go on carrier. There was still room inside the bag and I was no where close to the weight capacity. Will be using Space Bag 14 Bag Space Saver Set for bulky items like pillows, comforter, blankets and some clothing before putting those items in this bag to transport them when moving my daughter into her college dorm room. (I just wish the bag had handles on the ends so I could simply lift it and go instead of unpacking the items.)I'm very pleased with this item. There's an AMAZING amount of storage in the bag and when used with the included straps plus a couple of ratchet tie downs and/or a cargo net on a carrier, most will find it's a great purchase.---------------------------