experiences after half-year using of RoundCube webmail

[.4C3]

I'm sorry, but after more than half-year using of RoundCube webmail I have to say that this webmail is USELESS...
I've found a lot of basic errors in this application (webmail that can't send nor mail with one attachment is absolutely useless for me), but every time I told myself that newer version will resolve it, but now I'm really tired of waiting months and months for new version which would resolve it - in half-year only one ALPHA version was released and in this stadium of webmail it's really nothing...
With this speed of developing, I hope, maybe in two years will be released version which will be enough for working with mails, but now, I found it useless, I'm sorry... First time, when I found this application, it seems as absolutely best project of webmails, but with this access of developers it's dead...