In short, it definately works and is super useful!
Regardless of its success or failure as a saas product this tool works really well for our day to day operations. And it saves us soo much time.
Something we didn't consider initially is this is not only faster for us to perform update management on sites, but it also makes us more proactive with the task. Now reviewing updates is very close to 2 button clicks we can perform the updates faster and they happen more frequently for our customers.
We have decided its time to build a website and get ready for the new year. DOMAIN NAME TIME!
As a team we settled on "WP GIT Updater" as the name, and off we were to gandi for our .dev and .com domains, while our in house designer is working on a logo and brand.