Most traveler now a days think that Egypt is scary and dangerous... It's not. I would stick with a guide though, they make sure you don't get harassed too much and most of them really care about your experience and that you're happy with your decisions. Now is actually a perfect time to go because not many tourist are going. I had some of the Pyramids all to myself when I was there. Seriously... Nothing but me, my guide, and the driver. Make sure you have a driver from the airport too.
Insider Tip:Try staying at Pyramids View Inn, Cairo, Egypt. It's amazing. The view is awesome and the staff is super helpful!