Dropping carbs dramatically after living a life where you ate a normal/high amount of carbs is going to, most likely, make you miserable. If decreasing your carbs is of interest to you, do so slowly over time.
I can't really agree with this. The hardest part of going cold turkey "no carb" is the first week; after that, just watching weight literally fall off (I lost 15kg in two months) and having a constant energy level without the "carb crashes" are an excellent reward, which is important considering the time most people give up dieting is early, before they've really had a chance to change their lifestyle.
This has been true in my experience. I'm not sure if this approach is always better, but over time I've been gradually reducing carb intake and what used to feel impossible without being miserable (50-60 net carbs/day) is now painless.
However with the gradual approach, you probably won't get that dramatic shedding of weight some people talk about. I don't care about that, personally, because I get enough satisfaction out of steady progress and make a game out of optimizing my diet with delicious yet low/moderate carb food.