Everyone is posting that there isn’t a difference between these and the 1st gen. This is misleading and inaccurate. Is the improvement drastic, no, but it is still an improvement. The improvement is that Apple has upgraded the on-board chip to the H1, which leads to faster and more stable pairing. This isn’t anecdotal. It’s been tested and proven to be faster.
Also, if you opt for wireless charging, buy the case with the gen 2 AirPods and you’ll save a few dollars.
If you already have the 1st gen, then it’s probably not worth the upgrade. If you are looking to buy your first pair of AirPods, then go for these.