I learned to fly helicopters in a Jet Ranger at Bell. I have about 1,000 hours in the Jet Ranger/Long Ranger, which I first flew before the 407 and 250 or so hours in a MD 530F. A Jet Ranger and 500 have the same power plant, a similar empty weight, a similar gross weight and carry the same number of people. Beyond that, they fly completely differently.
The Jet Ranger has a semi rigid two blade rotor system, with hydraulics, and has what is affectionately known as same day response. The 500 has a fully articulated rotor system, no hydraulics, and is incredibly responsive. While not approved in the RFM, MD and Boeing demo pilots routinely looped and rolled the 500. The skid system is rigid on the Jet Ranger, and you want to gently land the ship to avoid a "kerplunk." The 500 skid system is hydraulic and very forgiving.
The 500 is 15-20 knots faster than the Jet Ranger at the same fuel burn. The Jet Ranger can have AC, and with the 500 you take the doors off! With the front doors off, the not to exceed speed is 69 knots in the Jet Ranger, and 130 knots in the 500. The Jet Ranger is more comfortable for rear seat passengers, and has a rear baggage compartment. The 500 can have tremendous visibility for the pilot, as you can see in the ship we are flying. You appreciate flying a Jet Ranger and you adore flying a 500. A number of helicopter pilots I know say the 500 is the best flying helicopter ever made.