I guess it's all down to personal taste, my friend. I played the Beta alone for the better part of it and the game is alot more fun if you play with friends or people that have a headset and you can co-ordinate with. As I said in my review, I really suck at the game but that's just part of it's charm. It kept drawing me back to try and get better - Maybe wait until it's on sale and then if you still don't like it, at least you didn't pay full price?
Hell yeah, it was a very conflicted personal toss up between Horizon and Days gone for me. I am very much looking forward to No Man's Sky too.