Gervais has a great way to show his humour in this show but he also gets to some really deep emotional places. His pain feels real, not like a comedian acting but really honest emotion coming through. The way the grief hits him all at once and when he's trying to bottle it down resonates.
Lots of great supporting actors, too. The greasy therapist and his coworkers all are great. I would recommend this show to anyone. The only tiny little thing I wish they had done was just leave out the score. The music, whatever. It plays best without it in my opinion.