I would stay away from any with the Kohler Courage 20-25HP motors. I bought a 2010 toro time cutter 50in as my first zero turn mower. Loved it till the flywheel broke, it had 31 hours on it. Went to my local repair shop and he sold me a used flywheel from a pile of 31 replaced motors. Said I would be money ahead to look for another mower with a Kawasaki motor, or a Kawasaki engine to replace the Kohler. He was right....about 2 months later the rod went out. A neighbor gave me a lawn tractor with the same motor but had a bad transmission. Swapped motors (another kohler courage) and it lasted about 3 months and it too went down. His words were "this is the motor that caused Kohler to go into bankruptcy".

Since replaced the toro with a bobcat and love it.

Hope this helps.
Scott