While I like the buds (because they were free), just bear in mind that they have terrible connectivity with non-Samsung devices (and even with Samsung ones they still glitch out every now and then). If you use them on a Windows PC you can expect some audio lag (same PC with non-Aptx-capable Jabra headphones, no lag...for comparison). They do feel super light and barely-there in your ear, so that's why I keep using mine, but if I had to pay for these, I'd definitely have to return or wouldn't be able to justify the current price tag.
So if the credit doesn't expire soon (someone told me that the Samsung.com pre-orders had to use the credit right then and there, no extension) and you already own headphones you like, I'd probably wait for the Galaxy Active 2 Watch instead of the earbuds. And get those with the next Galaxy if they fix their issues with the second iteration