I play with the PLUS and love it. When I hit with the standard length I loved it as well. Ultimately I went with the PLUS because of its distinct advantage on serve and I loved two handed and slice backhands with it. Forehands were a toss up, and at net I like the reach of the PLUS when stretched, but preferred the faster feel of the standard. I like the PLUS better on returns.
Both a great racquets, you can't go wrong. You will have a slight adjustment period with the plus, but it hides its length well.