Gonna bimp with Ashe impressions.
New Ashe is out. She's sooooo good. Slowing is now her passive and it scales with levels, starting out mostly negligible. You mini-crit slowed enemies, replacing your ability to normally crit, and your minicrit damage scales with crit chance and damage. It might be a little hidden-powery, I never really noticed the difference since you'll almost always be hitting slowed enemies, but it's very substantial. I've heard '1100 raw damage a hit on 2.5 attack speed at 6 items' thrown around. You can use Q to get the old slow back on hit for like 5 seconds and also you get charges for slowing enemies. With 5 your Q will also make your attacks volley for extra damage. Everything else is mostly the same, though volley has been changed to make it slightly harder to hit enemies behind their creeps. People tend to eat multiple arrows much more often, which only hurts you since only one arrow can actually do damage. Oh, and this is just something I feel is true, might not be. Her ult feels much slower now. It's not a huge thing when you're doing in-combat ults but cross-map ults seems impractically slow now. Her sustained DPS late game is pretty ridunkeylous with that new Q and bonus damage from crits.
As far as actually playing her goes, I think she's a lot more fun. Still retains the usual Ashe playstyle, though I think now she's less the low damage utility carry of the old days and more a very scary late game carry that still has a ton of utility.
I've been building IE, Shiv, Youmuu, PD, BT. Youmuu is a huge power spike due to the way her passive and her Q multihit works. She kills objectives and towers so fucking fast with Q and youmuu active and will melt the enemy team in seconds if they let her stand still. She feels pretty easy to stutter-step as well for when you're not standing still, very obvious animation that still manages to be quick.