If you are talking about Ballina, the CAGRO is providing more or less an AFIS service (and it's not remote - the CAGRO is there). One thing the CAGRO doesn't now have vs the old system, is actually being part of the system, so no coordination from other ATS units, flight plan info etc. You held details on planned movements, so could be looking ahead for conflicts, and aircraft had to call at 30 miles, so you had more time to assess (and pass). You already had a mental picture of what was happening or soon to happen. First becoming aware of something reasonably high performance when it calls inbound to a CTAF isn't giving the operator much time in a busy environment to assess things against the existing traffic. By the time the first exchange is over, half the distance could be covered.