Hmmm ... so I finished viewing all of season 7.
It seemed to start out on par with season 6, and I liked 5 & 6 more than 4. However, the last two episodes of season 7, episode 6 & 7 had flaws.
In episode 6 ... the idea that the dragon's could get all the way up to where the guys were stranded on the island in the middle of the ice covered lake after having captured an undead creature, that kind of stood out like a sore thumb. And then the opening scene of episode 7 where the Lannister army was facing off against the Sons ... well, it freaking went no where, like what the heck happened, and with no explanation. Plus the meeting of all those main characters in episode 7 ... bah, poorly written and could have used some more creativity accordingly.
I also didn't like that season 7 was only 7 episodes. Total crud to think they couldn't have done a better job, and stretched it out over 10 like the other seasons, the writing could have been better then as a result, and if they had taken their time to get where they were going a smoother season could have happened.