Hi fellow Canberrarians (well, until we bugger off for our round Oz trip in March anyway!)
We also were v interested in the Complete Campsite and All Terrain when we were looking for a new camper but both were out of our price range. Luckily we found a 3 year old CC Nomad in awesome condition!
We were put off the All Terrain because at the time we had an SUV as a towing tug and the AT sits quite high; annoyingly the fridge was on the opposite side to where you'd want it; and we also loved the stairwell in the CC. However I thought I saw at the Canberra show last weekend that AT has now moved their fridge next to the kitchen . We've also got a 4wd now (well, a ute), but if I was to toss up between the two I'd still have to say the stairwell in the CC wins it for us.
The only drawback to the CC over the other is that the CC is longer and lower, which can be a bit of an issue as we found out on a 4wd camper trailer course also last weekend (do it if you haven't done much off road work - Great Divide Tours in Braidwood - excellent weekend!). IMO the AT would be a better trailer for serious off road work as the CC is too long. However it does match our Navara well, and we're not aiming to go hardcore, just hoping we'll get through the OTT up at the Cape minus Gunshot, so it's ideal for us. We're also putting a bigger, better set of tyres on to give us an extra inch and the same sidewall protection as the car - Neil at CC tells me there's an inch and a half of tolerance in the canvas, so we'll see if he's telling porkies next week!
PS if you do decide to keep or go another CC, don't pay $750 for their stairwell drawers. If you don't mind putting a couple of screws into the wood panels and a bit of velcro on the floor carpet, those large Oates drawers (from Bunnings) fit perfectly height wise - 3 up and 3 across. $270! Just a tip after a few months of searching for something suitable and cheap
Good luck with your decision. Either will be good as long as you use it!
Hmm, edit - I see from the AT website the camper I saw at the show is in fact their new walk-up model. Now it gets really hard. Good luck!!!!!