I’ve never found suspend to be useful unless you are one of those “road warriors” that always needs to have the computer at hand and never get very far from a charger.
Hibernate was useful on earlier versions of Ubuntu and others that couldn’t remember what you were doing when you logged, off. But Mate 16.04 with Startup Applications “Automatically remember running applications when logging off” has made me turn off hibernation. As was said, its almost as fast to just reboot when resuming and a whole lot faster when shutting down. Current Firefox, Chrome and Chromium do a great job of picking up where you left off, although they don’t restart automatically when you start up after shutdown.
I haven’t tried SSD devices yet (except for a Chrombox that I wiped to install OpenELEC Kodi on) the $/GB is still too high and the capacities too low for my usage.