Does anyone have experience with this type of pack ?

It looks nice/light/inexpensive ($100) but I am concerned that the capacity (3,350cu) might be a problem since there appears to be very limited space to attach gear externally. I would probably have my tarp/poncho, sleeping bag, pad, and bivy.

Does anyone know how this type of material holds up over time? Is the price too good to be true?
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If you go hiking with friends,
there are many plans to coordinate;
if you go hiking alone,
you can leave right now.