This is great lube, but it's a thin lube. You want to clean your chain and apply new lube about every third or fourth ride, max. Me? I'm a "drop on every link" kind of guy. You might be a Squirty McSquirt and just squeeze the bottle while turning your cranks, soaking the chain, the floor, and pissing your wife off. Stop pissing your wife off and getting lube all over your bike. Be a Droppy McDropperton like me. You're welcome.

Being raised on TriFlow, I decided to try something else. I was researching this stuff and was pleasantly surprised to see the bike mechanic at the bike shop using this stuff. I got my bottle and put a bit on - by the way, the lid is a little stiff; unscrew the top half as you would a bottle of Sriracha. Ran the chain backwards ten turns or so and wiped it off. This stuff works great; I wouldn't say my chain is silent, but it is definitely very quiet. As others have said, it is a low viscosity oil, and as a result the first time I applied it, some went on the rim (danger to brakes!). Be careful.

This does also seem to flush out the gunk better than any other oil, too; after applying and wiping, the rag is often dirty even post-degreasing. This stuff is great, but I do apply rather often.

I tried this inside a cable housing, too, and it didn't seem to fix my squeaking issue nor make it worse.

Update -- 3 months --
This stuff is still blowing my mind. I wipe my chain down with a dry rag to remove dirt maybe every three rides or so - and my chain still looks brand new, six months after I've bought the bike. It's amazing. My other bike which I use TriFlow on, has its chain black in a matter of a week, despite wiping. This is amazing! Smells good too! I'd suggest you get the small bottle as an applicator, if you will, and the big bottle subsequently to refill it. (I don't see why they give you the sprayer nozzle - who'd use that?)

I tried other lubricant from Pedro, Finish Line, DuPont but I keep coming back to this one. It is thin and does a great job cleaning the chain as it does lubricating it. I personally don't like the residue from Dry lubes and don't like messiness from high viscosity ones. This one provides the perfect balance. It does mean that I have to apply it more often (usually a couple of hours prior to any ride of 50 miles or more). Definitely not a big deal since inspecting and caring for your bike is always in your best interest in terms of safety and performance.
You can't go wrong with this one.

I know practically nothing about chain grease, I just went on Amazon and bought whatever was cheap and had good reviews. There are some good high-rated reviews already, I'll just say that the product was as good as they say.

This lube worked very well for me over the past 2 years. I don't really do the complicated wiping and whatever other reviewers mention. I just turn the bike upside down, lean the nozzle on the chain, then slowly squirt while rotating the pedals. When the chain looks somewhat wet everywhere, I change gears a few times to make sure all the gears are greased also. This will last me 1-2 months of smooth pedaling and by month 3 I'll start feeling grinding as I pedal, which is when I re-apply. This is a bike that is outside 24/7 in the rain and sun as well, with no protection of the chain, which IMO proves how good the lube is.

Recently my bike ended up sitting outside for 2 months during heavy rain season. When I came back, the chain was rusted solid and would not move at all. The links seemed rusted solid to each other. I put on some WD40, wiped the bulk of the rust, and then manually freed the worst links with pliers. I then applied this lube as usual. My once horrifyingly rusted chain is now so smooth I can barely feel it move. Amazing! This convinced to get the 32 oz bottle (previously I had gotten the 4 oz).

I've tried most lubes on the market, from chain-L to finish line to boeshield (my current). While I know its pretty much a personal preference and people will swear by this as many times as they hate it i'd have to say it's nothing special. Although it's marketed as a bit of a dry lube it seems to gunk up and get black awfully fast despite a purely cleaned chain. I cant attest to the longevity of it as i wasn't all that pleased with the greasy nature and much prefer a traditional dry lube like boeshield which remains dry and doesn't big up much road gunk. And no, its not impossible to get off. That said, to each his own.