I have had tremendous success with scent ploys, especially during the rut. Ironically, I rarely use sex scents, but rather just plain old doe and buck urine. It's great for easing their mind while they are around your stand. It also allows you to bring them in to a certain spot (i.e., a shooting lane) and hold them there for a little while. Just be careful if you use scents to take care of two things:
1) always try to deploy it so that the deer will not cross your own scent trail while coming to or leaving from your placed deer scent, and
2) put it in a spot so that while they are spending time there you will be screened by some type of cover.
Good luck!!
Dave