I put one together, it was a good build, not too difficult. Take your time and it will come out good. Mine flies well, I have mechanical retracts on it, it makes the model when the wheels tuck up in the well after takeoff. I put the largest wheels on it I could, I fly off grass. It is a little tricky to taxi if the grass gets deep, and you will learn how to "fly it to a stop" to keep it from nosing over on the same grass. I have a Saito 100 on it. No bad tendencies while using the flaps, they do work how they were designed to.
Don't expect it to go together really quickly, it took me almost 3 months from start to finish, but I can only put in an hour or two here and there. I felt it took the right amount of time.I have built a number of planes before, though this one has been the most involved. The directions that come with the kit are good, and you can always search the build forums as there a few of these documented. My only really important recommendation would be to keep it close to the directions, don't worry about "strengthening" making it "light" etc. Good Luck!