I have not seen this but a few folks here have look at SmartBaer or even Confluence. Point by point, there is nothing I see that cannot be done in Creo View or some Windchill process. I think the sticker is the interface. JIRA like interfaces needs to be brought into Windchill in a fast way. If you shift reviews to tools like this you should walk the process and ask then what?
Since its a separate system, it requires export and import of STEP or PDF to stage the review. This immediately requires a user task and you've now disconnected data from the PLM system. Expect that this export/import will occur a few times as updates are made to address markups and comments.
After the review is done, this system will hold records of comments and possibly approvals. What becomes of that? How is this linked back to a change process to show objective evidence of a design review? Are security controls in place for this data?
Personally, I would want to see integrated systems rather than a collection of point solutions.
