The other real good reason it is v3.00 is an open MSSQL or Oracle solution, end to end. I picked MSSQL. It's windows 2k3, all the technology is refreshed. I have web reports now, a it has an "EMC" like an RMC on steroids, that's web deployed, and it was easy to upgrade.
I took advantage of the change and actually put in new "sweet" servers and added a few handhelds.
I totally recommend it. With all that said, I was able to stay with my current credit card relationship too. Sorry Shift4.
The best, best thing was ad-hoc, any day/date range reporting... So no more archiving of printed reports and no more End of day (anything).
Good luck, I hope this helps.