Challenger is slow, ugly, needs a glider on most carpet, hard to maneuver on some carpet even with a glider, has a velcro driver, has small wheels so it must be carried up and down stairs
Odyssey is fast, looks professional, doesn't need a glider, easy to maneuver, has big wheels, and a Malish Driver that is more aggressive and digs deeper on residential carpet
Odyssey is the 2023 Lexus of OP Machines
Challenger is the 1990 VW Beetle of OP Machines
I've used both
Buy the Odyssey
The new owners at
TOPS are good people making good machines
I have nothing against anybody at Challenger but Odyssey is a much better OP Machine
Odyssey and Challenger are Wheels Up OP and best suited for small Residential
If your doing Commercial or big Residential you might want to consider a Wheels Down OP