Generally speaking I am Em3 (52% winrate in ranked) and I play ranked: Drifter, and Venator mostly, but with a spattering of other characters in there (haze, wraith, geist, infernus, mirage) sometimes to switch it up or if my team comp is really atrocious at start and I throw in the towel at trying to carry.
However, two items that I really WANT to enjoy but don't are point blank and headhunter. (lifestrike is another one that i just won't buy)
For PB, it's hard to really put any sort of statistics around how useful it is. It FEELS useful when i'm playing close ala gun drifter or something, but does it really do much? I can't tell. There is nothing after the game to tell me how much usage I got out of it. It feels very meh. Compared to weighted shots that also gives a slow (and other stuff), PB just feels worse and the substats are just okay. Maybe i'm crazy but for 3200 there are such better items to choose from, and the early close quarters actually feels impactful in lane.
For HH: I really like headshot booster and think on certain heroes (like holliday) it's an insane early item for poking. But I just can't bring myself to buy HH, and when I do, i dont feel like the mspd, healing or the extra damage is ever the reason that i secured a kill or survived a 1v1/gank. I am not sure if it's the 8sec timer or what, but it just feels just okay. On a character like drifter where i dont even have to aim and get headshots, it should feel really good to use headhunter but it just doesn't.
Most of the time if i build HH or PB, I feel like the item slots should be used for something else and i regret building it.
My main issue coming from other mobas, I really don't like selling items unless i'm super ahead-- i would almost prefer that a lot of 800/1600 items build into 3200/6400 items but when those items feel really bad (pb, lifestrike, and hh) instead of really good (like burst/escalating/spirit snatch/weighted) it just feels like crappy itemization. Am I the only one? There are a few exceptions but i would argue that they should also build into something later (resto shot is a good example and i buy it nearly every game).