As usual it seems many people are quick to chime in with not having issues. To put it in context if there's negative experience 20% of the time there's still 80% where people have no issues and people who personally have not had any bad experience will ignore the rest, even though 20% would be a high rate. Of course the logic is as long as they haven't done it with me, they're good and who cares what others experience - at least until it happens to them. And as is often the case price is what matters to people and that's often the only specifics mentioned. My most recent and last experience is them (Mobeen Ashiq) offering something for a mistake and proceeding to ghost me. (the one offer email reply was under an hour, no reply to 2 emails after that for days)
They have a 2 star rating average on Trustpilot, the listing is claimed but they have not responded to anyone in 12 months - that should be a clear indicator they don't care.
Free shipping takes two weeks. Orders processed within 4-5 days. Option to pay for expedited shipping is ( I assume ) the same cost it would be at any other online retailer.
Of course the method of shipping is what matters and not whether it's free. I can only assume this is the items on the free shipping page under Special Deals. At this point they are not offering free shipping anymore even if your total is over $100. There used to be a loophole where any knife that ships free ends up making the whole order ship free but testing this right now even one knife on the FS list and another at $170 that's not on the FS list will pop up with a message saying it disqualifies the order from FS.** My guess is because a good percentage of knives over $100 are on the free ship list (nothing under, you can confirm sorting by price) some people just don't pay attention to notice that's no longer the case across the board. People who don't buy budget probably don't care but their shipping costs are also higher than most other popular stores.
** Edit: Even adding a 10ml bottle of KPL by itself will disqualify the order from free ship now.
The website currently says orders are processing 3-5 business days (not the same as calendar days) but recent experience was actually 7 business days, which is 3 more for a total of 10 calendar days given Labor Day. This of course doesn't include however long USPS takes to deliver it. In this case they did actually give it to USPS and didn't just create the label and have it sit there for days, which has happened before.
the tldr for many would probably be if you don't care about slow shipping time and just want the lowest price sure, of course with this kind of business the only option is to return it if there's any issue, and they are already slow to ship so if anything maybe figure that in to the simplistic linear measure of time and money.
As an alternative I find White Mountain Knives (no affiliation just a customer) much better to deal with, has consistent prompt shipping and when something is on sale it can be the best price of all, including compared with CKW at times.