The best feature of buoyancy which I like most about its toolkit was it's ability to allow us easy access into our AWS environments without having too many tools or configurations required by other similar products we were using at that time (such as CloudFormation).
It also allowed me good control over my environment with ease since everything can be done via code/config files instead from console UI itself - so no need if you're not comfortable in writing scripts etc., just use your IDE + config file! Not much but some things could have been improved such as adding more templates out there would make this product even better than what they already provide now; however overall very useful indeed especially when used along side their CLI client app called "buongiorno". We are solving problems related specifically around managing multiple instances across different clouds within one account while being able create new ones upon request whenever needed.