The reviews I have read by owners have been "mixed". I looked at them last fall and made an offer on a 54" Outlaw(built like a tank in regard to frame & deck). The models they sell at TSC are not as heavy duty as the models a dealer has. I'm somewhat "glad" the dealer did not accept my counter offer....mainly because of the dealer ratings of the Bad Boy manufacturer and the overall quality of the product:see link to survey below.
I have had a comercial grade one for the past 7 years. Mine has a water cooled kaw motor, twin pumps and motors, shocks, and a lumbar seat. Very comfortable.. It's a hefty built machine for a mid priced mower. More like a zero turn brush hog. They have made improvements over the years. I am not so impressed with the homeowner models though.
When ever I have had any issues the tech support guys at BadBoy had me covered
with replace parts most of the time at no charge.