I bought a Matein from Amazon last year and have only used it for one trip but I am getting ready to use it again very soon. It is the first backpack I have had in many years.
It is nice looking and seems to be well made. Even the inside is nice looking. There are many pouches and pockets. It is theft proof. It can be worn in the front or the back. My memory is that it gets high reviews.
I use it for my meds, technology, personal care, papers, etc. I even have a sling bag in it that i will use when out and about. I think that you could get a couple of days clothing in the one that I have. I do not know what size I have. It is not the biggest one.
I really have nothing to compare it to but I like it.