I've been using them for several months and found them to be rock solid, but there may still be bugs. The new email client, newsreader, and calendar are all still beta releases, so there may be rough edges. It's also just plain handy if you have several email accounts you want to check using a single interface. It's an empowering tool for those who want it. Putting an email client and newsreader in the browser gives people a way to take back control of those aspects of their online experience. Vivaldi offers an alternative to those of us who don't want Google reading our email, or don't want Facebook and Twitter determining what we read next. It's worth asking: Why bother with an email client in a web browser, when everyone uses web-based mail services? Because not everyone does.
