What do you like best?
The possibilities for this tool to structur the company capabilities, infrastructure and roadmaps are endless, IT Architects can gather all the informations of the company, servers and devices(mostly hardware), softwares and systems, and also data objects, useful when you have a data architect using the tool. You can integrate ES with any Framework, such as TOGAF or ITIL.
What do you dislike?
Enterprise Studio feels a little bit confusing when you start exploring the tool features, the screen has a lot of information, and not so much guidance... The web is definitely not a place where you can find easy information or workarounds/fixes about the tool or its challenges, so you must rely solely on documentation.
Recommendations to others considering the product:
Your team must learn a design language called archimate before going to ES, there are a few books and courses about it, and depending on who is selling the product, they are included in the contract, as your team certainly will need training.
What problems are you solving with the product? What benefits have you realized?
Enterprise Architects can communicate clearly with Solution and Data Architects, see their work, and at the same time Solution architects can view an updated version of the enterprise roadmap, giving some real time feedback. It's hard to a team of 30 or maybe 40 architects to keep visions and data aligned, and Enterprise Studio does the job.