I'm kinda surprised by the lack of reviews of the new version of
VMWare Workstation, but maybe VMWare users are cautious about upgrades. In short: go ahead and do it. If you duplicate your existing virtual machines by hand, you will pay for that $99 in a couple of months. And there are a bunch of other nice features.
You can now have multiple snapshots for a single virtual machine, and can revert to any particular snapshot. This makes experimentation even easier than before. I have already saved an hour of time with just that one feature.
Cloning virtual machines is between cool and wonderful. "Full" clones are cool: they properly copy everything you need to duplicate the virtual machine and make the right amendments to the file that says where all the requisite files are. "Linked" clones are wonderful: they are essentially separable snapshots, which in turn saves on a lot of disk space if you clone a lot. Put the base of a linked clone on a networked disk, and everyone gets to do their own deltas to that in their own work.
The new "teams" feature lets you tie together a group of virtual machines. If you think of VMWare as creating a restartable PC, a team is a restartable network of PCs, each rerunning independently.
One thing to look out for, though: the new "take and restore snapshots in the background" feature. At first blush, this should be great, because it lets you continue to work while you're making a snapshot. However, it causes weird usability issues when you start up from a snapshot. The window comes up looking like you can work in it, but it doesn't really take user input, may flash black, and just act flakey.
Oh, and VMWare's tech support has gone downhill, if my experience last week is typical. It took five rounds of back-and-forth, two of which were because the tech support person disappeared after I answered his/her questions, to find out that the problem I was having was related to this new feature being turned on by default. Whoever Ajay is, he/she needs either to learn how to not ignore customers when they ask questions to which you don't know the answers, to be able to diagnose issues better, or to find a job in a different line of work.