Having watched Signal before this, I can’t help but compare.

Both are different in a sense. Signal had more impactful flashbacks and every case was linked together but Life of Mars was more a journey, you’ll not only fall more in love with the characters’ personalities, but watching each of them grow for the better is so heartwarming. The climax builds up until the very end. It’s more lighthearted with sprinkles of humour and simpler cases. You just hope the team stays together. The ending is kinda sad, it depends on how you interpret it.

The only reason I wouldn't rewatch it because I've already watched the ending and it wouldn't be as good as the first time.