Watched the entire season in one day. Couldn't stop watching as it was thrilling and intriguing the entire season. I'm really disappointed that they ended the show as there are very few shows out there these days which are so unique and well written.
The ending leaves a lot of questions unanswered but still gives you some closure. Considering that they only had one season, I'd say they summed up the story very well in the time given.
If you're considering whether not to watch it due to the fact it was canceled, then I would highly recommend watching it regardless as it is definitely worth the watch.