Most ARFs seem to be quite well made, all the ones I have built/assembled so far have been very well made and saved me a huge time building. I have heard many say that with building you know that you did everything right, but really, most structural elements can be determined in ARF models, unless there is truly a bad defect in the wing or something of that kind, you can see where there might be a problem. So, if you ask me, an almost ready to fly airplane can very well be just as high quality as a kit built plane.