It's been a while since I've tried the RS3 Beta. Had too many issues getting logged in the first time. What was there, seemed nice but very slow. I guess that's been fixed by now, or they wouldn't be announcing a release date... would they?
RS3 aside, I did spend a couple of evenings playing with the NIS this week. It looks like a lot of fun. I probably spent 5 hours straight just opening random menus and moving things around. I can't speak much to the technical side of things. What I experienced was stable, responsive, and looked good. The bank was unavailable the first couple of times, and some of the features were still locked. Last night the bank was working again, which was nice. Looks like the 'equip from bank' screen is gone, though.
I've never liked the chat window at the bottom left, so it was the next subject. Anywhere on the bottom just wasn't in my 'attention zone'. After trying different places, it wound up on the right hand wall, about midway up. Just under the mini-map, and above the Inventory management window... which gives away the next phase.
I made the windows about halfway transparent. It gives a feel of more screen area. The Dungeoneering skill counters on the right, near the top of the chat window, can be turned off. But every time I logged back in, they returned. So I quit paying attention to them. Hopefully that will be fixed in the official release. The window titles (Minimap, Backpack, All Chat, etc...) can be removed. But like the skill counters, they keep reappearing every time I log in. Small details that I expect will be taken care of before the 22nd.
And that's my NIS setup. So far. It'll probably change a lot over time. Or maybe not. Maybe this is my perfect screen... Nah. :^)