I like it, but waiting to see if the content/news/specials sections are still updated and relavent like before. Back when I used to spend more time in-game than out, I even figured out that I could load this page in my browser just to check the news without having to restart game (I prefer this format over the website home page or forums):
http://us.runesofmagic.com/launcher.html
I'm glad to see that still works, although it is pretty lame ATM because doesn't have any current news really.
Only concern about the new launcher is that it is a good deal taller (vertical pixels) than the old one. I'm not sure if the devs gave any thought to how this will fit on some netbooks or laptops. I does fit on my laptop, just barely, but I think some screens have even lower vertical resolution than mine.