I love this show and will maintain that its one of the best shows out there. Was i disappointed by season 4, sure, did it fall short of its previous seasons, sure did it lack substance sure did abby's character who was deceased frequent it way too often definitely however ive decided to view sherlock holistically which means accepting season 4 for what it is, its not the best however its still interesting and filled with suspense it just falls short of the previous seasons which is why i think many dislike it. it definitely makes sherlock depreciate in value as we see him deterriorate. definitely give the first three seasons a watch also having to wait for new episodes made the show really enticing and at that time it was probably a bit hard for me to see season4 for what it was. great show non the less will miss out on great television if you dont watch