I started with loose powder and now shoot pellets. I will probably never switch back.
As stated earlier the shot to shot consistency is, with my experience, is a lot better. Just seems like less can go wrong, no granules of powder getting blown away changing my charge, etc.
The drawback is, your gun had better like either 100gr or 150gr with your given bullet, because there is not as much control like w/ loose powder.
But my Encore loves 150gr of Pyro pellets and those 200gr Shockwave bullets.