Hi Karen, just on the other side of the coin, we are using an agent for our CPV143 and for us it was the right decision. We had a couple of problems during lodgement and paying for the 1st VAC which our agents jumped on straight away and sorted it for us. We could have probably sorted it out ourselves if we hadn't used an agent but I dread to think of the length of time it would have entailed to do that not to mention the stress, I've already aged 10 years since we started the process LOL. The best of luck to you Karen, hope it all goes well whichever method you choose.
Best wishes
maisiedaisy