I'm returning my pair with Wireless Charging Case, instead, I will just go and get other pair with old-fashioned, but reliable normal Charging Case.
The biggest reason is that I just discovered that all of my (Qi-certified) wireless chargers refuse to continue charging the Case when I pick it up, grab out the AirPods, and put it back right away. I have to wait like 30 seconds after picking it up in oder to get the wireless charging function works normally again.
I've not seen anyone else talked about this issue so it could just be me, either way, this strange behavior really annoys me because it never happens to my phone, but this time, I literally don't know if my AirPod Case would being charged or not every time I leave it on a wireless charger, so I end up keeping checking its charging status back and forth.
Another big reason is that, turns out, I had a hard time getting used to this new LED indicator design.
Sounds not like a big deal by moving the LED from the inside of the Case to the front, so that we can see the charging status without opening the lid while the Case being charged, except, it is NOT on while charging! So what's the point of changing its position because the lid must be opened to turn it on anyway? Not to mention we can always using our phones to check charging status just like before. This could also refer back to my first mentioned issue, I don't know if it's working properly at a glance!
Other than that, the front of the Case isn't the surface I would look at when I grab out my AirPods, usually, by grabbing out both of the AirPods I immediately know whether the Case itself needs to be charged, very convenient – not anymore with this Wireless Charging Case. My thumb would mostly block the LED (hashtag, you're holding it wrong) and I have to turn the Case around a little bit in order to see it.
The design might not be a deal breaker considering many people want to differentiate themselves from the 1st Gen. AirPods holders the first place, but like I said, the change makes no sense to me, at least for now.
Apple might redress all the issues I mentioned above in the future, e.g. improving the reliability of the inductive sensor, letting the LED always on while charging. But all in all, it leads me to a final question: why would I pay 50 Euros more (229 € vs 179 € in EU) for a half-baked wireless charging function?!
Initially I thought it's nice to have one less cord to take care of, and it would be great to let this Case work with AirPower so I could always start my day with all my three devices (phone, watch, and headphones) being fully charged. We all know what happened to the AirPower, so I'm not investing in another wireless charging pad/mat/stand for this specific "always-being-charged" charging matter.
It's nice to have 100% fully charged AirPod Case everyday, but I'm fine charging it twice a week, more or less. Besides, charging it through a Lightning cable seems to be faster than wireless charging.
TL;DR: AirPods are great from the beginning, and now they're even better. As long as you are not specific in need of wireless charging, or new Case design, the 2nd Generation AirPods with normal Charging Case are not loosing any features by any means and work perfectly. Do yourself a favor and save these 50 Euros (or 40 USD) for something else.
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A quick follow-up:
So I did send my first AirPods with Wireless Charging Case back, and I also did order another pair with normal Charging Case, however,
1) as soon as I opened the box, I discovered my second pair had a minor, but for me an unacceptable beauty issue (presumably caused during the packaging process);
2) I realized that I actually need that wireless charging functionality while I'm on travel, because I don't bring any cables with me anymore thanks to my wireless power bank;
3) my nearest Apple Store has both variants of AirPods in stock! (at this time, online orders may take 4 weeks to ship)
Although I'm still quite unused to this new case design, I returned my second pair and got myself another pair with Wireless Charging Case, so yeah... think twice before buying!