My first plane was the goldberg cub. The man at the hobby store said it was a good first trainer(not!). After building it I put it aside and learned on something more practicle. when I did move up to it finally, I found it to be an excellent flyer. which kit you decide on may be determined by what your intentions are. If you just want a good flying plane that looks like a cub, go with the goldberg. If you want something to do up scale, I think there are better kits available. the goldberg just uses strip ailerons while I know at least the Great Planes model uses more scale-like barn door ailerons. I know the the Balsa USA kit can be done very nicely and as stated, it can handle your 120 with ease.