By it's numbers, the IBIS should be a pretty nice trainer. I have not flown one.

I generally agree with all of the favorable comments about the LT-40, and it, or the LT-25 is the model I generally recommend.

However, if you have a good instructor and you build it well, I am sure that you would have no trouble with the IBIS. There is some attractiveness in the idea of not building a trainer that looks like everyone elses, and the IBIS is a nice looking bird.

Put another way, If you showed up at my field with an IBIS, I would not shy away from teaching you with it, and I think most other instructors would agree.