The Oz RCM did a review on one a few months ago and gave it a reasonable write up. I think they used a .90 4 stroke, can't be sure though.
I have also looked at one and like what I see. Looks tough.
It would be a good candidate for pneumatic retracts.
Peter Gow at Custom Retracts up in N.S.W. makes good quality ones for this kit for less than Oz $200 a set including tank and all valves.