On the SPYN Canada website it has a application PDF. On it it gives this info (which I'm sure you've seen):
Size: 19x8
PCD: 5x100
CB: blank
ET: 35
Now, I'm not sure what you call an offset in Canada, but maybe it's represented by "ET" for you guys, cause 35 falls into the acceptable offset range of your car. Which is 35 - 42. If the rims fit on a Golf, I'd be willing to bet they'd fit on yours offset wise. The only thing I'd think about before hand is brake clearance as you have larger GLI brakes but with 19"s you shouldn't have to worry too much.
If you want to be 100% sure, call the actual manufacturer and ask them for all the dimensions of the rim.
Now for a comment on the look of the rims,

. They actually look alot like the ones I plan to get for my 05 GLI.

Good choice in my opinion.
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'05 MKIV Jetta GLI - Black, 6-speed manual, stock...but not for long.
'94 Prelude S - Blue, 5-speed manual, Tokico blues w/ lowering springs 1.8" drop, Sportstop slotted rotors w/ SS brake lines, AEM short ram intake system and a failed N/A build

...new plans to come.
"There is no such thing as a hopeless cause, only insufficiently motivated soldiers." - Colonel Stephen Wollett