I just picked up an Edge Explore 2 for my touring setup (which is also really my "do everything" bike). Was really on the fence for a while because I also have a Garmin GPS64SX I can mount on the bars but decided to shell out for the EE2 for a few reasons:

1. Wanted some extra performance feedback (like heart-rate) but didn't need anything as elaborate as the 8 or 10 series units.
2. Much smaller, lighter and sleeker on the bars than the 64SX, easier to pocket if I take it for more "normal" biking and want to take it with me when I lock up. Will see much more use outside of touring, would use for general commuting and rec rides now too.
3. The Garmin 64 series can charge NiMH batteries which is nice (and the option for spares) but it's inability to disable auto-off when USB power is removed is quite annoying. They really need to update that.
4. Small point but now able to standardize my charge cables - phone, headlight and EE2 all use USB-C.

Seems like the sweet spot in that Garmin line-up as long as you don't need advanced training features. That 64SX would be a great option still if you were doing a trip with lots of exploring off-road though.

Not a fan of the colour though, the white doesn't match anything on my bike, silly I know Dynamo on-board now but it charges a buffer battery in my frame-bag, it won't be used to directly charge the EE2.