We've booked with VRBO a couple times now and been happy with it. If you are looking for this February you may have a harder time finding something if you have specific parameters as many book up months in advance. I did luck out and find a highly rated rental in my price range in early December for my February dates (had to make a last minute adjustment to our plan and needed 4 nights). It just happened that this rental had the 4 nights available that I wanted.
VRBO is a great resource. Agree that looking for plentiful recent reviews is important. I always correspond with the owner initially with a question or two to see how quickly they respond. It's important to me that the owner is responsive to any and all questions.