Sooo, I received my Nillkin GO and first impressions are overall positive, but I have a few questions for other owners:
- so far I had to manually turn them on when taking out of the case and also manually turn off before putting back in (otherwise music would keep playing in closed case) ... this could be because the charging case was pretty low on battery? The buds seemed like 70% full according to iOS ...
(just found the hastily discarded manual and it seems to confirm this, no auto-turning on / off ... I can live with that)
- there is no indicator light on the buds themselves that indicate charging? According to manual the buds should glow red ... hmm .. maybe they were still 100% .. but i listened for like 20 minutes ... should recharge ... i do hope they recharge, otherwise I have a problem ...
I love how tiny the case is (see compared to KZ T1 case) .. and that strawberry / coral red is a nice change from all that black.
Even the spare eartips match the color!
The fit is great (with the largest tips) and I can nicely jam them up my earhole

The SQ overall would put them in my above average pile, possibly Tier 2 or even tier 1 (let me double check, did I count them up or down?) .. but that needs further testing ... they are NOT as detailed sparkly as the KZ, but they do have nice bass. With IPX5 they should make for some nice running buds.
Last bit: refreshing to hear a different female voice doing all the alert messages
Edit: me silly goose! Found the problem with the 'non'-charging: A tiny piece of tape/film over the contacts for protection .. which I had seen on many other buds before, but here, because of the color and my failing eyesight I did not see them. Now i get to witness something new as well: There are not only LEDs on the buds to indicate charging in process, but also at the rear of the case. Nice!