Ventajas
Overall Target is a great company, they make amazing products and generally you work with very talented people. They only hire the best so the young talent is particularly impressive. They have made some poor choices in the last 5 years but I firmly believe the direction they are headed currently is going to get them back on top. The full package (benefits, pay, etc) is pretty average, nothing impressive unless you are headhunted and some experience under your belt.
Desventajas
Target is a corporation so it is unlikely you will feel your personal contributions make a difference. They are so big a lot of poor performers and bad decisions get lost in the shuffle. There are people there that are all talk that continue to get promoted because they know how to play the game. The company is not very diverse because of the location, I think that is changing though.