Mixed on it.
Honestly, the writing was atrocious in some places. Homecoming, the 200th episode, that was a brilliantly written episode that could have been the perfect end to the series. This felt more like a culmination of all of the filler of this season with some shots of a CGI Superman thrown in to add a sense of completion, and the show's attempt to try to go all-out with stuff that their budget couldn't pull off. But even so, the ideas were there, and they were executed. And it was nice to see as many people come back as they did, and it was certainly a treat to hear the Williams theme playing as he went off to save the day. So in that respect, the actual "ending" itself fulfilled it's obligation. Clark is Superman, the journey or whatever is over.
But wow. Wow, was there alot of stuff they should've just shelved, or could have improved upon with some last minute rewrites. And not even in a way of "He needs to wear the suit", though that was certainly disappointing. But they could have just avoided the Lionel thing entirely by having Darkseid disappear as RushedCGIman pushed Apokolips away, still doing the good part of that scene in it's place - which was Clark seeing his past accomplishments and flying for the first time.
Just... I don't know. I guess I expected more after the 200th did such a great job of moving Clark forward and hinting just enough at his future. And there were great ideas, don't get me wrong, but there were plenty of bad ones too.