I just found this show a few days ago and was happy to hear that I got onboard just as Season 3 dropped. I straight binged the first two seasons and then was bummed to hear that Season 3 would be the last. I thought the first two seasons were fantastic, and the front side of Season 3 as well. Just seemed to me that at about S3 E3 they got word that there would be no Season 4 as the bows they tied off the various threads with just seemed a bit too convenient. Not to say that I didn't enjoy it. I just think it could have been wrapped up a bit better or continued with and alternate path. Something along the lines of a bargain with the universe of a life for a life with tough choices there; Kirstie going to Sweden perhaps.
Now as for the details....I thought the cast did a terrific job overall and I enjoy the characters a good deal. ONE thing that I found a bit lacking was the total lack of realism in dealing with the characters who were "older" being dropped into a new world. Charlie would be AMAZED by a LearJet. To Paddy and Chi, EVERYTHING would have blown them away. Chi was the only character to exhibit any of this with the large bus and the I-pad. Otherwise, none of them seemed at all plussed by the modern marvels. Oh well...nit-picking I guess. Again thoug, overall a great show that I thoroughly enjoyed...with a few eye-rolling moments.