|Lighthouse in Glasgow|
My only problem is that I hate them. Deeply.
I find it rather hard to go up or down, if I have to watch out for enemies at the same time. More often than not I simply jump down or go around if possible, so that I don't need to use them. I actually got so used to doing this, that one of my low level characters died because of it in Ogrimmar. More than once.
Is there anything that's even half as annoying in MMO architecture?