I dont know about the TT Trainer specificaly but if it's as good as there engines it should be OK. If you cant get advice you like i'd go with one of the better known brands like Vmar or Kyosho but TT or world models or pheonix or, or ,or.
have a look at
www.radiomodels.com.au as they are about the cheapest in Aus i know of.
heres a link to a forum on the TTT
http://www.********.net/forums/showt...p?threadid=126
And some reviews
http://webpages.charter.net/rcfu/Kit...s/TTTrnr2.html
http://fly.hiwaay.net/~dknight/rc/review/tttrnr.html