Some good features seems to be no longer existing. Not sure if its going to implement in the future or its gone.
First one is the previous settings are lost. For example I used to display 100 problems/page and now it always go to default 50/page.
Second, the page where I am currently on is also reset to 0. Not a big problem but it's a hassle to make the extra clicks to go to my current page everytime.

Overall I like the new layout.