You got a LOT right, but you also got a lot wrong.
Being an inherently negative person I will focus on the later.
1. The ending? No Epilogue? What the Masseffect 3 is going on here? Some staffer take a trip to Bioware and get infected? Is it contagious? Fallout was like the ORIGINAL epilogue game. Its really not Fallout without it. (Like doing a starwars movie without the starting scroll, you missed an essential ingredient).
2. I puttered around doing various quests for the factions and so got my level up to the high 60's near the end. Fun did not scale well. Also very little joy in finding new things. I was esnnencially using all the same weapons and armor I had by level 30. You need to channel borderlands 2, I want to be finding new and interesting equipment to phase out my old equipment.
3. Way too much important mechanical stuff is to far beneath the hood. Happiness of settlers, not that its really in any way important because I spent the whole game building it up so I could see the results of the new vibrant nation I'd built in THE EPILOGUE YOU DON'T HAVE! I also had a hard time figuring out things like power.
4. The ability to have an inventory management system even worse than the one in Skyrim was an achievement that I imagine it must have taken a large team of people many years to achieve. That kind of fail doesn't simply happen by accident.
5. Your radiant kept sending me to the same places over and over again. I'm not sure why I kept having to visit the same settlement to rescue a kidnapping victim from the same raider base. Radiant need to be smart enough to track where I have already been, and then send me somewhere else.
6. You have some balancing issues with the easy accessibility of raw materials and the required materials for settlements.
7. Defending settlements from attack was not fun. In many cases the baddies simply seem to have warped past defenses. And the settlers don't seem to scale well with attackers.