Since I love Power Armors so much ([size=12pt]T-51b forever![/size]), I decided to dick around in-game (with a git build updated as of 3/31/2013) and see how Power Armor fares.
After wishing [size=8pt](What? I’m not looting the world just to look for one.)[/size] me the whole set (Basic power armor, basic power armor helmet, and UPS) I rushed headfirst into the first zombie infested area. Here are a few observations.
[ol][li]Unpowered (UPS off), the whole set had an encumbrance of 5. Each part encumbered the parts they were supposed to encumber.[/li]
[li]Powered (UPS on), the whole set had an encumbrance of 1. There was an instance where the encumbrance was 4, but I haven’t yet replicated it. Scratch that, the 4 was caused by not having any volume for item space.[/li]
[li]Very damage resistant. I let myself be surrounded by lots of Zs and I barely got damaged. As in my health bar was unchanged. Ran around craters for fun too. Funny thing happened: once I was surrounded by Zs and a spitter zombie decided to come to the party. As usual I just stood around for a while, the yellow Z just spitting at me now and then. The Zs surrounding me melted away; I was left completely unscathed, save for armor damage.[/li]
[li]Pretty durable. It lasted a 10+ in-game minutes under constant Z assault. It’s kind of weird though, seeing how “fragile” they are considering that they’re power armor, but I guess it’s just me.[/li]
[li]You can’t wear the armor if you have the helmet on first. Possible bug? Addendum: the bug apparently, was that I was able to wear the helmet on first without the armor, which shouldn’t be possible. Wielding the helmet then equipping it equips it even without power armor.[/li][/ol]
Verdict: Very durable, very useful, but not very practical for everyday use due to its reliance on UPS (which eats through batteries like hell) and, since it’s rare enough I think, the lack of repairing options.
As a side note, is it possible to create/is there a search function for the Debug screen? For the purpose of easier cheating debugging/testing I mean.