FWIW, I pre-ordred mine and they work great. I did get the low battery warning a bit earlier than I'd expect.
I swapped the batteries taking into account the tips listed by Garmin in this forum and they have continued to work well. The caps are somewhat delicate, I treated it as such.
Garmin support, for me, has always been helpful in the past. It seems they are swapping out battery caps as quickly as they can make them. The battery cap swap is straightforward and seems to be the focus of all the issues. The rest of the pedal appears solid.
In contrast my Gen1 stages always had trouble getting data to my watch or bike computer. There was no fix for this, poor RF performance was a design flaw.
If you want to train this season with power and in the USA order from REI and take advantage of their 1yr exchange policy if something goes horribly wrong.