Migrating to Bitbucket server from another mercurial based vcs (kiln)

[lou]

We currently use  kiln which uses mercurial under the bonnet as our source/version control system. However we are looking to migrate into something that  is a quite similar i.e  mercurial based and one that can be on a hosted server on site.

I came across bitbucket server as an alternative. 

I'd like to learn more about this in order to make a decision and i'm guessing that others would have some first hand experience on best ways to approach migration.