Hello Kimberly, you ask a great question and we are going to go into detail for everyone to read. The Nutone CT600 is an old industry standard brush packaged under many different names including Kenmore PowerMate (older style), Hayden (as sold here at MD), and others. It truly has stood the test of time as a durable, reliable vacuum head. It's biggest issues are breaking belts easily and being one of the tallest brushes around. It is the best brush though for shag type carpets - fibers over one inch long. Less durable is Nutone's CT650 with its thinner plastic and not as solid feeling. It also suffers from bad steering. You can find this same brush sold under different names around the industry. Comparing these brushes with MD's Italian made Stealth, you get a brush that has only had one belt break in over 12 years, with 10's of 1000's sold. It is also made of industrial plastic, Lexan, and is put together with several heavy duty bolts. The wheels are real, non-marking, rubber. It has a height adjustment in 10 increments to fine tune the best vacuuming height. It gets under more furniture and is quieter than all other brushes on the market today. Here is a chart that compares the brushes we sell. The Hayden (CT600 is not on it because we usually only sell it to specific customers.) https://builtinvacuum.com/comparison.html
. Also, here is the link to Stealth. If you decide to buy, get one with the 8ft cord since you have that style already. https://builtinvacuum.com/stealth-kit/index.html
. The comparison chart gives you the noteworthy differences. The Stealth Kit comes with two sets of brushes. One for carpet and one for hard floors. You can use the Stealth on hard floors for a quick clean. Just turn off the brush and leave the suction on (using the handle controls). The hard floor brush is better for hard floors, though, because of the action on the floor from the bristles. Also, for your second hose, buy a "corded" one here https://builtinvacuum.com/hoses/electrichoses.html
if you desire to. Hope this lengthy answer is what you need to make an educated decision. Let us know if you need something more. Thank you.