have about 2 years of happy flying with my tiggy so far and yes it will climb under full power. MVVS 30 petrol in the nose. I am about to play with throttle to elevator mix to help with that.
Rarely fly about 1/3 throttle except when I want to do a loop, stall turn or roll so the trim issue rarely causes a problem.
It is delightful and fun to fly and keeps you using the rudder all the time which is a good thing.
Get about 15 to 18 min flights out of the standard tank with best being about 25 mins.
Put a Mobious camera on it too which is like a GoPro. Interesting to watch afterwards.
Mate of mine has just done a kit bash on his in the scheme of the one he flew in New Zealand as an 18 year old, he is mid 70s now. Lovely to see it in that scheme.
Happy Happy!