As long as you have given some thought as to how to do your purges (if you intend to do so) and how frequently you intend doing them. The main difficulties we have had with Aggregate over the years has been when the servers are burdened with a large number of records. Throwing resources at the servers has mitigated the issue to an extent, but the servers always seem to hit a point where they struggle and can become unresponsive. That said, our forms have been image heavy and have had numerous repeat groups. The answer to this has been reasonably regular old record purges.
It will be interesting to hear how the project goes.