Got my SE 2.5 years ago and it’s still going strong. For the most part, battery life lasts me the entire day. (6 am to 10 pm, and usually still has 30% or so left.) The features it doesn’t have are ones I’d never use anyway, so I don’t miss them at all. My watch does fine in water; my wife wears her SE while swimming, and I’ll wear mine in the shower. No problems at all. Charging time is usually pretty fast; I don’t know offhand how long it takes because I usually charge overnight (it serves as my alarm clock), but I’m pretty sure it usually charges from half to full pretty fast.

I think I’ve had 5 watch faces in the two and a half years I’ve had my watch. The swiping thing annoyed me because I’d brush the watch and it would change faces. So, I’ve been happy with the change. I do think it would be great if they made it so we could turn that option on or off, depending on our taste.