I have the campmor and I like it and use it more than I thought I would.
I am not by nature a "one bagger" but this has almost converted me and for the times I have to one bag it it has done very well indeed.
It holds up well so far (4 plane trips, about 5 train journey and numerous car). Cleans up really well.

The various mean of using it really come in handy if you are doing unpredictable or off road travel. It is pretty light, and non uncomfortable to wear as a rucksack, but surely not as comfortable as a purpose make backpack.

When I am not traveling with it, I use it to hold all my other bags !