With the Wastelanders update and the following updates this game really redeemed itself. NPC's are back and the world feels more alive with new settlements and better quests. The free season pass is a really nice addition to the game and gives you a reason to log on daily or atleast weekly because you can get some nice rewards for just playing the game.
My time in this game (~700 hours) has been played 50% solo and 50% with friends i'd say. I do think it's a lot beter with friends but its fun solo for sure. The perk system is probably the best i've seen in any Fallout game and it has the smoothest gameplay aswell. It does lack in the RPG department. Decisions on what factions you support and dialog options sometimes feel somewhat meaningless unfortunatly.
I do feel it needs some more end-game. There are things you can grind for but Bethesda has put a daily cap on the recources you need for them. These hopefully go up in the future!
Overall I would recommend this game if you like the Fallout franchise, especially for the price you can get it at now. 78/100 for me and climbing.