I wanted to add that the link is just for the chain -- not the lock. Just wanted to make sure of that. I've heard decent things about the heavy chains with hexagonal links. The idea of the hex pattern is to chew up bolt cutters. I'm sure the old rule still applies: if a thief wants it badly enough, he or she will get it.
Back when the 99 dollar kryptonite chain was the only option, it definitely didn't pay for all but those of us living in the most shady of neighborhoods. The fact that this chain is only 17 bucks would give me pause, but if the composition of the metal is comparable, why not go for it? If it's weight you're worried about, there's an easy solution my grandfather used to love to repeat, "Suck it up, buttercup."
Not that you're a buttercup of course. You get what I'm driving at I think. It'll make a handy weapon, too, if you're ever accosted by an angry mob of hipsters or hell's angels, or whatever.
I should add, too, that as a lock-picking enthusiast, this looks like a pretty simple lock to defeat. All the heavy-ass chain in the world won't stop someone who can open a basic disc tumbler lock like this one.
Granted, the chance of a thief having put the time and effort in to learn to pick a lock is much smaller than that they've just gone and bought some bolt cutters, but you never know. I'd go with a nice heavy chain, but spend a bit more on the lock than the one pictured. Get a nice heavy duty padlock with an interchangeable BEST core. Very tough to open and not tons of mula like an Abloy.