Does the paid version guarantee the absence of constant problems with authorization?

What will happen to the big projects that we have now?
Will I not be able to edit them or will they disappear altogether?

Two reasons why I used your product: direct integration with lcsc.com and cloud storage of projects with ease of transfer.
What you described for the paid version is just a slightly improved current one. But the free version comes with excessively reduced functionality.

I'm waiting for your answer so that I can understand whether I should start transferring all projects back to KiCAD or not.

Reading everything that is “new”, I saw local hosting (which is no longer provided).
Will this idea never be implemented or will it ever become available for the enterprise account?

Security and access are important.
Especially considering that the “main server” may be unavailable at times or “mandatory updates” break authorization.

I have known you since 2014, I was glad when the desktop version appeared (and was disappointed when I realized that it was just a web application).
For pet projects, the web version is sufficient, but for work it would be nice to have a stable implementation that is independent of an external server.

@weatherius Yes, the paid version can guarantee constant  authorization and with some  unique services to save your time or remove some google ads  .
   You don't need to worry anything, because the free version provide full offline version too.

We  promiss the core feature of EasyEDA free forever just to avoid  “mandatory updates” break authorization. this is our brand, if we break this, we will lost our users, EasyEDA has lots of users , some are very big companies too.

EasyEDA provides online and offline version at the same time, just want to make our users to feel safty.  we provide Premium , just want to make our users to feel safty too.
BTW, Premium  version's core feature will be service.  such as https://easyeda.com/page/layout .

If you have time, please check https://easyeda.com/page/pricing FAQ.

@dillon thanks for the answer

The most common problem I have encountered over the past two years is access problems.
Even now, in order to respond to your comment, I had to log in again, although since writing, even the tab in the browser has not been closed.
For the same reason, I stopped using the desktop version - almost a minute from the moment of launch, to the working mode is a lot. (And I’m not talking about problems with constant updates for the desktop, which can break something critical)
there is also a problem that I rarely encounter, but which is important - lcsc.com shows one quantity of components in stock, easyeda.com another quantity, and how to place an order (on the same day) jlcpcb.com says that the required element is not in stock (and lcsc.com writes that there is)

https://easyeda.com/page/layout  not interested, but the second comment was written after reading all the pages (too much Coming soon)

one quantity of components in stock

Almost  all of the small pcs stock which will be that problem,  LCSC, JLCPCB, EASYEDA use the diffirent databases. some time will be sold out.
 Never trust 1 pcs stock product in design, you should buy it ASAP.

EasyEDA try to help customers to save time in design and fab.   We have a big team on this.