I am brand new at canning, and did my first batch prior to ordering these tools. It went okay, but I was immediately sold on the idea of a jar lifter. I looked and looked locally but couldn't find one, and this set was available for immediate shipment.
The jar lifter is fantastic, and ultimately I think it alone is worth the price of admission -- not because it's worth it in and of itself, but because it's a total necessity, so I would have purchased it at any price that wouldn't break the bank.
The other pieces are either already part of a moderately well-equipped kitchen, are nice but not necessary, and/or are not all that well constructed.
I'd opted to return a relatively expensive set of plastic funnels when I purchased this set, but the included funnel here melted a bit under the heat of the boiling brine I poured over the pickles-to-be. Same for the plastic surrounding the magnet when I used it (quite effectively) to grab the jar lids out of a simmer sauce pan. The lid wrench I'm just not sure I see a use for, since jars aren't supposed to be super tight and they tend to loosen when cooled anyway (or am I misunderstanding what this is for?), and the tongs, well, who doesn't have tongs?
Anyway, in researching for this review, I've come to feel like something of an idiot, because the pieces are available separately and eligible for the free shipping promotion of your choice. Unless you don't already have a funnel, or don't mind the possibility of plastic in your canned food, I recommend saving five bucks and just getting these two pieces: