Native support for SolrCloud
Since Solr is critical to a horizontally scaled Sitecore environment, it would be really great if the SolrCloud was supported.
We do support Solr Cloud as 'experimental': https://kb.sitecore.net/articles/227897
It means that we'll try to help you in each case, however, there could be some issues on Solr side that we might not be able to help with =\
Solr cloud integration is reliable now, thereby please feel free to use it =)