It has the same problem I had with Tumblr for ages - if you leave the page for any reason it starts again at the top. I HATE that and there doesn't seem to be a way to turn it off like there is on Tumblr.
It's also missing all the links I have down the side which I do actually use from time to time, so, yeah, not loving it. I like my layout, that's why I use it. Let's hope it stays optional.