Your server only needs SSH daemon running.
Both password and key based authentications are supported. Once connected, the list will refresh automatically.
Server Activity Monitor contains all the features you would expect from a desktop application: searching, filtering and responsiveness.
Getting a quick view of the server's running processes, CPU, and memory consumption is as easy as clicking a Dock icon.
You will not need need to launch a terminal and remember cryptic command line tools arguments to use the software.