I haven't used it, but I'll try to summarize what I know for the folks asking general questions.
"The Lightning Experience" generally is a set of related products and tools from Salesforce. It's based on a live-updating model (as opposed to Salesforce's old-style whole page refresh model) and has a new visual and UX design system targeting mobile.
They're trying to bring everyone along to their new model, but they clearly understand it will take a while: they've built an experience switcher in the main menu and have invested heavily in adoption tooling.
The honest truth is that Lightning Components are just vendor lock-in. Once you buy into lightning, you wind up using their proprietary communication channels and their proprietary component library (which this press release makes clear isn't open sourced).
If you want to change backends to something better, you can't because while the backend will port rather directly, the front-end will not.
Then there's also the fact (unless things have changed dramatically in the past few months) that writing your front-end in Vue or React will result in much faster UI experiences and finding developers to maintain it will be easier and cheaper (Salesforce devs are generally a bit more expensive).
I think the honest truth is that the only people going to be using LWC are Salesforce developers on the Salesforce platform, they're already locked in.
> live-updating ... as opposed to ... whole page refresh
Does that mean that changes in data on the server are automatically pushed to the client, i.e. if you're viewing a customer and someone else is editing that customer, you will see the data in your view change in real time?
Or is it just using AJAX instead of traditional server-side rendering?
"The Lightning Experience" generally is a set of related products and tools from Salesforce. It's based on a live-updating model (as opposed to Salesforce's old-style whole page refresh model) and has a new visual and UX design system targeting mobile.
They're trying to bring everyone along to their new model, but they clearly understand it will take a while: they've built an experience switcher in the main menu and have invested heavily in adoption tooling.
If you want more specific info I'd suggest their training site Trailhead. Here's the Lightning Web Components introduction: https://trailhead.salesforce.com/content/learn/modules/light...