I also wish I could remember what lost me, I just remember watching the first episodes and being in love with it, right up until a point in a later episode.

I can even remember thinking, but that's not right at all... and it wasn't changing a pocket watch into a phone, I actually really enjoyed those touches. That is part of what gave the show its charm. I just remember that they were trying so hard to stay true to the books, they completely ignored a modern solution to the problem.

An example would be DNA. He finds a lady, dead, who clearly put up a fight, blood under her fingernails, and she was sexually assaulted. And Sherlock completely ignores the DNA aspect. (Or was it a CCTV camera in the background?)

It was something jarring like that.

I remember laughing and saying, 'Why don't you...' It completely destroyed the experience.

If you don't notice something like that, you will enjoy it. It's fun seeing how they modernized the books. Right until the developers miss the obvious and you catch it.