China has stepped it up lately as far as clones, I do agree, a little research helps a lot, but the majority of the clones coming from China are not bad. A year ago Tobeco sucked, I have 4 recent releases from Tobeco, latest being a Rose clone, and it is exceptional quality. Wotofo seems to have the nicest Elrkonigin clone, but no one seems to have them in stock yet.
Eleaf has come up with a couple of nice pieces lately, of course the Istick is one, another well worth buying is the Lemo, which is Kayfun like, add killer air flow, and a glass tank, and you have the Lemo.
Hoping that some of these successes will lead to more innovation, and less need to clone everything. I try and pick carefully but its getting easier to buy quality hardware from China.