What are your views about the Bitrix24 hosting and website builder?

I didn't find anyone BHW talking about the bitrix24 free hosting and an very easy site building features they are offering. Though as they say they are still in beta phase so we can't say much of it.
I didn't try any of their paid plans and certainly not going to unless reading a lot of reviews about it and discussing about them over here.
So folks what are your views about the site?
The offers are quite lucid but don't know how they would actually perform

Bitrix is pretty popular in Russia & Eastern Europe