I am fine with the ST mirroring the OT. However, I hated the idea of a third Death Star. Vader said that the ability to destroy a planet is insignificant compared to the power of the Force, and the first two Death Stars enabled the Empire’s destruction. Thus, it is illogical for the First Order to build another Death Star.
Additionally, The Force Awakens should not have ever used Kylo Ren as a vehicle for comic relief. His temper tantrums with his lightsaber diminished his stature as a villain. Kylo Ren should have defeated Rey in the lightsaber duel. Rey should have barely survived. The hero should always lose to the villain during their first encounter with one another.
Here is a video detailing more of the film’s flaws: