I am not using this for schoolbooks or anything really heavy. It seems to be well constructed. The shoulder straps are NOT padded, or if they are that doesn't meet my definition. They are wider and that helps to distribute the weight. I think it would be large enough for a weekend. I like the back zippered compartment for documents, receipts, passport. It does not open out for TSA easy pass for the laptop and does not have sufficient padding to keep a laptop safe. I have only been using it for a month or so, so cannot speak to how it will hold up over time. I did a lot of research, and searched a lot, and for this price range, buy this one.
UPDATE - I have had this backpack for several months and while I am not hauling 50 lbs of books, it has held up well, except for one thing. The second time I tried to use the external usb port it broke. It was beyond the Amazon return window. KROSER EXCHANGED IT, NO QUESTIONS ASKED!!!!!!!!!!! And they sent me a free return shipping label. Now that is a company I can get behind. Thank you Kroser!!!!!!