Originally Posted by
Endless_Legend
That's not exactly true. Finn had no melee training with a lightsaber, but he obviously had combat training.
Likewise, Rey had no lightsaber training, but we saw that she knew her way around melee weapons and fighting pretty well. A lightsaber is a different kind of animal than any other weapon, but it's not like they were both helpless babies or anything.
We see Ren exhibit tons of raw power through the movie. (and eventually, we see Rey do the same) but you have to remember that the new movies are trying to go back to the themes of the originals: Nobody is really trained anymore because the Jedi *and* the Sith are gone. Everybody is self-taught (or they had teachers that didn't really know how to teach very well) and all the force-users are kind of figuring it out as they go.
It was a fantastic movie, anyways, so your complaints are all nitpicking. You've been hanging around the forum too long if you can't enjoy a movie just because the villain isn't some hyper-competent Gary Stu.