Salt is unfortunately (in my two year old experience) full of features and strange bugs related to them - I do remember encountering a bunch of memory leaks master side for example. Deployment had the classic issues of python applications.

The core was (mostly) solid, but if you need anything done on it do buy the time of some consultant working on it already.

It's not as accessible as ansible, but definitely more accessible than cfengine. At least coming from Ansible.