Reecius over at Frontline is VERY impressed:
[URL="http://www.frontlinegaming.org/2013/10/18/sisters-of-battle-first-impressions/"]Sisters 1st Impressions[/URL]
excerpt
Anyone here have it? Let's hear your own impressions. Did GW Digital slip in a gamechanger under everyone's noses?First of all, there are some big changes! This isn’t just a digital version of the book or a supplement, this is a full blown codex with a color section, fluff, new wargear, points value, rules, etc.
Second of all: Sisters are good. Really good and they are gong to upset the hell out of the meta.
Why?
Comdemnor Boltguns. Holy. Crap. This 10pt weapon is 24″, assault 1, Strength 5, AP-, and, wait for it, any unit HIT by this weapons suffers Perils in the Warp….my god! Screamerstar just crapped its pants. So did the Seercouncil, and any Psychic model in the game. Great Gonzo’s nose that is crazy! Any character with access to the Ranged Weapons section of the armory can take these weapons and that is pretty much every Character (including sarges) and Command Squads can pack 5! Wow. That just made every psyker in the game a liability if you find yourself facing Sisters. Eldar get some cushion with Ghost Helms, and FnP still helps, but these are straight deadly. Even overwatch is scary! Taking these liberally throughout an army is going to just shut down enemy psykers.