I have a Fury from Gaw (hosted) and a Blizzard from Zeus.
From what I've read it's pretty much the same stuff, Zeus supplies Gaw.
I've needed support from both companies and Zeus never replied but Gaw replied plenty.
If you read the Zeus thread over at litecointalk you'll see plenty of problems with the Blizzard and the very old 3.11 cgminer made available for it, that might improve as better mining software/firmware is made available. I think it's gona be the users themselves that improve the software for these.
The hosted Fury I have at Gaw came online last monday, a week ago, and has spent probably 80% of that time NOT mining, constant problems with it, always crashing.
Gaw's Fury is cheaper than the Blizzard at the moment, not sure if that's gona last since the CEO of Zeus said that Gaw will have to "fix" that
Source:
https://litecointalk.org/index.php?topic=16301.msg180536#msg180536Given my experience with both companies so far it is very unlikely I will buy from Zeus again but Gaw is still on the table if they improve their tech.