What do you like best?
Sony Vegas Pro has always been the absolute fastest tool for throwing together a basic edit. The simple feature of two overlapping media events on a track being treated as a dissolve saves so much time compared to the A/B track model of everything else.
Rather than opening media in a trimmer window, where you set an in/out point then drage the clip to the timeline, Vegas defaults to opening media on the timeline for direct trimming. Since, either way you're placing and trimming a clip, I see this as saving two moves on every clips. For those who LIKE Trimmer windows, setting those up to work as expected is changing one setting in program options.
Vegas has the best audio editing features of any NLE. Period.
With the new Vegas Pro 14 Vegas adds support for many newer cameras and codecs including HVEC (h.265) and R3D files as well as a new native ProRes decoder, removing the need for Quicktime.
As a Hitfilm user I'm glad that the Hitfilm integration (broken in Vegas 13) has been fixed.
Vegas Pro is very easy to use, and I've been able to train new users from never using the software before to completeing full edits on their own with a half-day of training.
What do you dislike?
Vegas Pro's GPU acceleration is in desperate need of repair. Currently it's something better turned off. Some of the encoders aren't the best, either. The MainConcept encoders are a little lower quality than some other options out there. You'll have to tune your render settings beyond the supplied templates to get the best output.
Because of changes that had to be made to the code due to change of ownership many third-party plug-ins for previous versions are now broken.
Recommendations to others considering the product
Be aware that due to the change of publisher from SONY to MAGIX that pre-Vegas 14 versions of any script based plug-in will not work.
What business problems are you solving with the product? What benefits have you realized?
As a freelance videographer/designer/editor time is money. Bottom line, I am four-to-six times faster in Vegas than I am in Avid, Premiere or FCPX. I've completed projects in a workday in Vegas that were taking other editors two or more days to do in other software. Vegas doesn't quite have all the bells and whistles of Premiere or Avid, but, once again, for speed of basic editing tasks (95% of what you do in an NLE), Vegas is just fastest and easiest to use.
Training new users in Vegas is very easy--again it all comes down to how Vegas treats overlapping clips. Since 95% of edits are straight cuts and 90% of transitions are simple dissolves, this one simple feature makes a huge difference. Not defaulting to a Trimmer window is great for new users as well.