Congrats on your Angel Bird's arrival, and glad that you like it!
yes, they are very sturdy, in fact, the posings will be pretty much rock solid, and yes, very little metal, but you'll probably appreciate it when it comes to holding a pose. And no worries about durability, as long as you handle it like a mature adult and not a 3 year old, it will last you a very long time to come. I know, I own probably close to a dozen of 1/48s! LOL~!