I can now share or not (it's up to me) users, configurations, database tables, update extensions...
You will need to get used to manage websites with JMS control panel, but it will be very worthwhile! It was money and time well spent - some days after install I can see the profit!!!
Whenever a doubt or any other support is needed, you can count on getting a solution fast - great work. On top of that, community is growing and you can learn from other users experience also. Check their website.
Definitely: Recommended for anyone managing several websites or planning to do so in the future.