I'm glad they clearly mention the magic armour never deteriorating and magically resizing. It seems like, when you keep that in mind, magic armour would be amazing asset to an adventurer, even at +1, because it wouldn't need maintenance, which would otherwise be a huge chore. They don't note whether it needs repairs after damage (dents, penetrations, etc.), but I suppose it naturally extends that it "heals" from damage.
I'm sad that the descriptions of the items are a little colour-less, though. I know they've got limited space and the DM will customize items, and so on, but, not even suggestions as to what they might look like? Maybe that's covered elsewhere. I suppose space is very much at premium here.