If you get one that outputs 10W, then you will be fast charging. 2.4hrs to charge from 5%, although you should really not let the battery drop below 15% often to prolonger battery cell health.
I posted earlier about LG releasing a 15W one very soon, that will charge at the same rate as the standard wire on our phones as they are the only ones to support 15W Qi charging.
My Samsung chargers have both played up. the pad one has recently started to stop and restart charging randomly from time to time. Exactly the same way the stand version died not too long after.
I have a Tronsmart Chocolate, and CHoetech ones, and they're excellent, and work with any QC2.0 wall charger for Qi fast charging, unlike the Samsung ones.
The ones you linked are fine, just make sure they output 10W, else your'e gonna have to add another hour to the charge time.