As someone who's been using one for a few years now I'm a bit puzzled by all the barista-hoopla about it, but it does what it's meant to with a minimum of fuss. Result.
Peter, have you had a problem with the rubber bung on the end of the plunger getting tighter in the bore of the chamber? I've had mine for a few years now and it's getting quite difficult to push the plunger down. I use a stainless steel mug for my coffee and that is just as well as the pressure required would reduce a china cup to powder. I've actually just ordered a replacement bung, so I'll see how that goes.
I guess it depends on how much importance you attach to decent coffee in the outdoors. Personally, I would never give an Aeropress pack room as it is too bulky. You also have the hassle of packing out used filter papers. I'm probably just a lazy sod - I use instant tea to avoid packing out used teabags.
I've had an Aeropress for a couple of years. It replaced my office cafetière and, to be fair, it is a heck of a lot easier to clean than a cafetière. Thing is, the coffee it makes is exactly the same as that from a cafetière.
For some reason, the Aeropress has acquired a hipster following and is being absurdly praised by those idiots who seem determined to make coffee the new wine.