You can also set up a personal domain there for free, if you can read/translate Russian instructions at http://pdd.yandex.ru
Their web client for mail is localized into English.
Pros:
* Not google; yandex have rather good reputation here, and like google, they are tech company, with good engineering team
* A nice web-interface for mail (for my use case it's comparable to google's)
* Supports RSS feeds via mail interface
* Like google, there are interesting services: calendar, maps, search, translations, etc.
Cons:
* Basically, yandex is Russian google in terms of business (89% of their revenue is ads); however, they don't do hardware and don't have a facebook/plus-like social network
* Russian-based, so potentially a kgbfsb threat (never heard of any kgbfsb incidents, though)
* Some/most services are not localized for English speakers